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Link Posted: 7/5/2024 5:55:00 PM EST
[Last Edit: Dirty_Robster] [#1]
I just got a chance to take the MK12 Mod 1 that I just got done building up a couple weeks back to the range today.

Colt upper I bought from a member from here, with arms 22H with a Leupold 112633 on a H&R retro lower from PSA with the A1 stock, I swapped the grip for a ergo and put a SSA-E trigger in it.
WOA 18" spr barrel from the pirates sale from last black friday
KAC rails, grip, AEM muzzle break and AEM collar that I bought from a friend that was downsizing his collection.
OCM5 in jail
I have a Harris bipod, I guess I need the ARMS #32 to mount it right?

I feel like its pretty darn close to being correct, maybe a little paint

It shot really good for first time shooting it. It had a couple hickups off the first two mags I shot with some FTE, empty casing halfway out with next round trying to chamber in the feedramp. maybe just needed to be broken in. The collar came loose, I just forgot the loctite, easy fix there I think.

I was using PSAs AAC 77otms at 25yds. I think they did pretty well for what they are.

Attachment Attached File

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Link Posted: 7/5/2024 6:24:31 PM EST
[Last Edit: bigbore] [#2]
Link Posted: 7/5/2024 6:34:48 PM EST
[#3]
It was just to test the rifle before I drive about a hour and half to an outdoor range.
Link Posted: 7/5/2024 6:50:03 PM EST
[#4]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dirty_Robster:
I have a Harris bipod, I guess I need the ARMS #32 to mount it right?
View Quote


Knight's MWS bipod adapter
Link Posted: 7/7/2024 7:04:54 PM EST
[#5]
Who is the member that removes the lever stop and re-profiles the 22H rings?
Link Posted: 7/7/2024 7:27:04 PM EST
[#6]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LongTrang:
Who is the member that removes the lever stop and re-profiles the 22H rings?
View Quote

@Haveblue83
Link Posted: 7/7/2024 8:03:06 PM EST
[Last Edit: AWHAILYEAH] [#7]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

@Haveblue83
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Originally Posted By SecretSquirell:
Originally Posted By LongTrang:
Who is the member that removes the lever stop and re-profiles the 22H rings?

@Haveblue83



Didn't he say fuck us? lolol but seriously he said hit'em up on the gram would be faster but that'll he'll check in from time to time here.......................I need to get his ass too I need some stubby's made  

@Haveblue83
Link Posted: 7/7/2024 8:21:17 PM EST
[Last Edit: LongTrang] [#8]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AWHAILYEAH:



Didn't he say fuck us? lolol but seriously he said hit'em up on the gram would be faster but that'll he'll check in from time to time here.......................I need to get his ass too I need some stubby's made  

@Haveblue83
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Originally Posted By AWHAILYEAH:
Originally Posted By SecretSquirell:
Originally Posted By LongTrang:
Who is the member that removes the lever stop and re-profiles the 22H rings?

@Haveblue83



Didn't he say fuck us? lolol but seriously he said hit'em up on the gram would be faster but that'll he'll check in from time to time here.......................I need to get his ass too I need some stubby's made  

@Haveblue83


LOL
I don't have the gram so I'm assed out there.  Having built my mod 1 some 15 years ago, it's time for an overhaul.  So, correcting some little details before the rebuild.
Link Posted: 7/7/2024 8:23:21 PM EST
[#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AWHAILYEAH:



Didn't he say fuck us? lolol but seriously he said hit'em up on the gram would be faster but that'll he'll check in from time to time here.......................I need to get his ass too I need some stubby's made  

@Haveblue83
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Originally Posted By AWHAILYEAH:
Originally Posted By SecretSquirell:
Originally Posted By LongTrang:
Who is the member that removes the lever stop and re-profiles the 22H rings?

@Haveblue83



Didn't he say fuck us? lolol but seriously he said hit'em up on the gram would be faster but that'll he'll check in from time to time here.......................I need to get his ass too I need some stubby's made  

@Haveblue83

He's pissed about the new EE.
Link Posted: 7/7/2024 8:43:11 PM EST
[#10]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

He's pissed about the new EE.
View Quote

I just don't understand that. The new ee is extremely easy to use..
Link Posted: 7/8/2024 11:23:43 AM EST
[#11]
Thanks, @Ch0b0 and @Teufelhunden1 for posting those pictures of the CTR's!

I have another question regarding the current production of AEM5 suppressors.  I see that Thoroughbred Armament has the AEM5s available, but I know Ottercreek has their OCM5 but they are out of stock every place I have looked.  Is there a huge performance difference between the Allen and Ottercreek cans, or are they similar enough that it's not worth waiting for an OCM5 to become available?
Link Posted: 7/8/2024 11:40:18 AM EST
[#13]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tevan0707:
Thanks, @Ch0b0 and @Teufelhunden1 for posting those pictures of the CTR's!

I have another question regarding the current production of AEM5 suppressors.  I see that Thoroughbred Armament has the AEM5s available, but I know Ottercreek has their OCM5 but they are out of stock every place I have looked.  Is there a huge performance difference between the Allen and Ottercreek cans, or are they similar enough that it's not worth waiting for an OCM5 to become available?
View Quote

I was curious how the different mk12 supressors compared. I am contemplating starting my build with the supressor.
Link Posted: 7/8/2024 11:44:58 AM EST
[#14]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tarheel7734:

I was curious how the different mk12 supressors compared. I am contemplating starting my build with the supressor.
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Originally Posted By tarheel7734:
Originally Posted By tevan0707:
Thanks, @Ch0b0 and @Teufelhunden1 for posting those pictures of the CTR's!

I have another question regarding the current production of AEM5 suppressors.  I see that Thoroughbred Armament has the AEM5s available, but I know Ottercreek has their OCM5 but they are out of stock every place I have looked.  Is there a huge performance difference between the Allen and Ottercreek cans, or are they similar enough that it's not worth waiting for an OCM5 to become available?

I was curious how the different mk12 supressors compared. I am contemplating starting my build with the supressor.
i did a quick comparison at a local event and honestly I couldn't tell much difference.  
I have an OCM5 and in the process of ordering an AEM5.
Link Posted: 7/8/2024 7:22:43 PM EST
[Last Edit: HaveBlue83] [#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tarheel7734:

I just don't understand that. The new ee is extremely easy to use..
View Quote

Compared to..........deep sea fishing? It's trash. They bright idea fairied a well oiled machine, hid features behind other menus, removed things, because of ???? Welcher's? Lol still happening. many others agree. Enraging they would do such a thing. I have thousands in parts I'd like to list but I can't. Got a pile of stuff. I have walked away for awhile until they.....get their shyt straight.  75% of my time on here WAS on the EE. Daily. Daily. The other 25% is clone pages.

Thx for the tag, y'all. I still do lever stops. Just pm me. I'm basically just coming here to check PMs. I have other forums to sell my goods and browse.
Link Posted: 7/8/2024 8:08:27 PM EST
[#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By HaveBlue83:

Compared to..........deep sea fishing? It's trash. They bright idea fairied a well oiled machine, hid features behind other menus, removed things, because of ???? Welcher's? Lol still happening. many others agree. Enraging they would do such a thing. I have thousands in parts I'd like to list but I can't. Got a pile of stuff. I have walked away for awhile until they.....get their shyt straight.  75% of my time on here WAS on the EE. Daily. Daily. The other 25% is clone pages.

Thx for the tag, y'all. I still do lever stops. Just pm me. I'm basically just coming here to check PMs. I have other forums to sell my goods and browse.
View Quote

Lmao. It's actually much easier to search and use now.  A dedicated search function and listing is extremely easy. I have used both systems and the last sale was easier than before.
Link Posted: 7/8/2024 9:17:47 PM EST
[#17]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dirty_Robster:
I just got a chance to take the MK12 Mod 1 that I just got done building up a couple weeks back to the range today.

Colt upper I bought from a member from here, with arms 22H with a Leupold 112633 on a H&R retro lower from PSA with the A1 stock, I swapped the grip for a ergo and put a SSA-E trigger in it.
WOA 18" spr barrel from the pirates sale from last black friday
KAC rails, grip, AEM muzzle break and AEM collar that I bought from a friend that was downsizing his collection.
OCM5 in jail
I have a Harris bipod, I guess I need the ARMS #32 to mount it right?

I feel like its pretty darn close to being correct, maybe a little paint

It shot really good for first time shooting it. It had a couple hickups off the first two mags I shot with some FTE, empty casing halfway out with next round trying to chamber in the feedramp. maybe just needed to be broken in. The collar came loose, I just forgot the loctite, easy fix there I think.

I was using PSAs AAC 77otms at 25yds. I think they did pretty well for what they are.

https://www.ar15.com/media/mediaFiles/286973/20240705_134944_jpg-3259157.JPG
https://www.ar15.com/media/mediaFiles/286973/20240705_132944_jpg-3259156.JPG
https://www.ar15.com/media/mediaFiles/286973/20240705_133004_jpg-3259158.JPG
View Quote
Sweet build. The Mod 1 uses a KAC bipod mount, the A.R.M.S. mount was mostly Mod 0
Link Posted: 7/10/2024 10:31:59 AM EST
[Last Edit: cebiNg] [#18]
Interesting offering by Primary Arms. No idea if the contour is right for the AEM5 but it looks the part from a “bird’s eye view”. Not sure how accurate it is with the chrome lining. I wonder who's making these for them?

https://www.primaryarms.com/expo-arms-556-nato-chrome-lined-ar15-barrel-enhanced-medium-profile-rifle-length-077-port-18in
Link Posted: 7/10/2024 8:01:37 PM EST
[#19]
Link Posted: 7/11/2024 9:44:38 AM EST
[#20]
Discussion ForumsJump to Quoted PostQuote History


P E A K

would win any rifle procurement contract. Works anywhere, any conditions, any distance

The perfect AR-15
Link Posted: 7/11/2024 3:51:20 PM EST
[#21]
Link Posted: 7/12/2024 11:52:33 AM EST
[#22]
Finally got to stretch the MK12 out. It's so much better than my old NSWDG recce for precision shooting and accuracy past 650m

Me and my buddies Mk12.


Plate rack is at 450M

Targets from 550m to a Mile


No impacts at 1000m today but wore out that 800m target. I'll try for the 1000m again in the fall.
Link Posted: 7/12/2024 1:26:39 PM EST
[Last Edit: towerofpower94] [#23]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:
Finally got to stretch the MK12 out. It's so much better than my old NSWDG recce for precision shooting and accuracy past 650m

Me and my buddies Mk12.
https://i.imgur.com/JGxa3E1.jpeg
https://i.imgur.com/frJ6j1O.jpeg
Plate rack is at 450M
https://i.imgur.com/jYd4Z6D.jpeg
Targets from 550m to a Mile
https://i.imgur.com/NZWSrpA.jpeg

No impacts at 1000m today but wore out that 800m target. I'll try for the 1000m again in the fall.
View Quote


Spotting hits for 5.56 at 1k is tough without an electronic hit indicator or downrange target cam. They're coming in at such a steep angle its tough to see any dirt kicked up by a miss and they don't really move steel that's bigger than ~12" in my experience. And a 12" disc at 1k is not the easiest target for 5.56 if there's any wind, haha.

What barrels do you have in your Mk 12 and your Recce? Think that's where the accuracy difference is coming from?
Link Posted: 7/12/2024 1:43:56 PM EST
[#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By towerofpower94:


Spotting hits for 5.56 at 1k is tough without an electronic hit indicator or downrange target cam. They're coming in at such a steep angle its tough to see any dirt kicked up by a miss and they don't really move steel that's bigger than ~12" in my experience. And a 12" disc at 1k is not the easiest target for 5.56 if there's any wind, haha.

What barrels do you have in your Mk 12 and your Recce? Think that's where the accuracy difference is coming from?
View Quote



Both Douglas. They are the same accuracy wise at least at 100m. I never shoot groups past that.


More magnification, better reticle, clearer sight picture due to the parallax adjustment on the MK6 over the x24 NXS is the biggest difference. MK12 has a little more velocity and the recoil impulse is slightly smoother.
Link Posted: 7/12/2024 2:34:47 PM EST
[#25]
Gonna prolly need TMK for 1000yds.

Best way is to setup clays at 1k and shoot them on a dirt berm and then the misses are visible very well.

10-16x is plenty for 1k ;)
Link Posted: 7/12/2024 4:09:46 PM EST
[#26]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:



Both Douglas. They are the same accuracy wise at least at 100m. I never shoot groups past that.


More magnification, better reticle, clearer sight picture due to the parallax adjustment on the MK6 over the x24 NXS is the biggest difference. MK12 has a little more velocity and the recoil impulse is slightly smoother.
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Originally Posted By Eyekahn:
Originally Posted By towerofpower94:


Spotting hits for 5.56 at 1k is tough without an electronic hit indicator or downrange target cam. They're coming in at such a steep angle its tough to see any dirt kicked up by a miss and they don't really move steel that's bigger than ~12" in my experience. And a 12" disc at 1k is not the easiest target for 5.56 if there's any wind, haha.

What barrels do you have in your Mk 12 and your Recce? Think that's where the accuracy difference is coming from?



Both Douglas. They are the same accuracy wise at least at 100m. I never shoot groups past that.


More magnification, better reticle, clearer sight picture due to the parallax adjustment on the MK6 over the x24 NXS is the biggest difference. MK12 has a little more velocity and the recoil impulse is slightly smoother.


Ah, duh, the glass difference should have been my first thought, haha. The velocity doesn’t hurt, but I can’t imagine the round is flying all that much faster in your 18” Mk 12 compared to the Recce. Do you have chrono data from both with the same load? I’ve chrono’d my Mod 0 and Mod H with the same 77gr TMK handloads and the Mod 0 is picking up 60fps with the additional 2” of barrel. I’d be interested to see what you’re finding with the 15.1”(?) Recce barrel compared to the 18” Mk 12.

Pic thread

Attachment Attached File
Link Posted: 7/12/2024 9:00:07 PM EST
[Last Edit: Eyekahn] [#27]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By towerofpower94:


Ah, duh, the glass difference should have been my first thought, haha. The velocity doesn’t hurt, but I can’t imagine the round is flying all that much faster in your 18” Mk 12 compared to the Recce. Do you have chrono data from both with the same load? I’ve chrono’d my Mod 0 and Mod H with the same 77gr TMK handloads and the Mod 0 is picking up 60fps with the additional 2” of barrel. I’d be interested to see what you’re finding with the 15.1”(?) Recce barrel compared to the 18” Mk 12.

Pic thread

https://www.ar15.com/media/mediaFiles/302703/IMG_5181_jpeg-3264543.JPG
View Quote


About 100fps

15.1" was 2670 but I was blowing primers in the summer. So backed down to 2600fps

18" is 2750 through the chrono but trued velocity was 2777.

Same charge weight, same brass, same projectile. Different primer.

Also, the 15.1" will hit transonic flight 100m closer than the mk12.

I absolutely loved the 15.1" but I always found myself shooting it at 500m and further and the X24 did really start to wear on me  I finally gave in and said I'm treating this recce rifle like an all out SPR so why am I not just using an SPR.
Link Posted: 7/13/2024 5:56:20 AM EST
[Last Edit: towerofpower94] [#28]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:


About 100fps

15.1" was 2670 but I was blowing primers in the summer. So backed down to 2600fps

18" is 2750 through the chrono but trued velocity was 2777.

Same charge weight, same brass, same projectile. Different primer.

Also, the 15.1" will hit transonic flight 100m closer than the mk12.

I absolutely loved the 15.1" but I always found myself shooting it at 500m and further and the X24 did really start to wear on me  I finally gave in and said I'm treating this recce rifle like an all out SPR so why am I not just using an SPR.
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Originally Posted By Eyekahn:
Originally Posted By towerofpower94:


Ah, duh, the glass difference should have been my first thought, haha. The velocity doesn’t hurt, but I can’t imagine the round is flying all that much faster in your 18” Mk 12 compared to the Recce. Do you have chrono data from both with the same load? I’ve chrono’d my Mod 0 and Mod H with the same 77gr TMK handloads and the Mod 0 is picking up 60fps with the additional 2” of barrel. I’d be interested to see what you’re finding with the 15.1”(?) Recce barrel compared to the 18” Mk 12.

Pic thread

https://www.ar15.com/media/mediaFiles/302703/IMG_5181_jpeg-3264543.JPG


About 100fps

15.1" was 2670 but I was blowing primers in the summer. So backed down to 2600fps

18" is 2750 through the chrono but trued velocity was 2777.

Same charge weight, same brass, same projectile. Different primer.

Also, the 15.1" will hit transonic flight 100m closer than the mk12.

I absolutely loved the 15.1" but I always found myself shooting it at 500m and further and the X24 did really start to wear on me  I finally gave in and said I'm treating this recce rifle like an all out SPR so why am I not just using an SPR.


Interesting. Wonder if the Recce has a throat that’s a tad shorter or some other characteristic that’s causing the pressure spike.

Mind sharing the load data? My go to is a 77gr SMK or TMK over 23.6gr of 8208, lit by a Rem 7.5 SRP in once fired LC brass. I used to anneal the once fired LC before processing, but I did a head to head test and the annealing didn’t really improve the ES/SD or accuracy, so I don’t do it anymore.
Link Posted: 7/13/2024 6:39:16 AM EST
[Last Edit: Eyekahn] [#29]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By towerofpower94:


Interesting. Wonder if the Recce has a throat that’s a tad shorter or some other characteristic that’s causing the pressure spike.

Mind sharing the load data? My go to is a 77gr SMK or TMK over 23.6gr of 8208, lit by a Rem 7.5 SRP in once fired LC brass. I used to anneal the once fired LC before processing, but I did a head to head test and the annealing didn’t really improve the ES/SD or accuracy, so I don’t do it anymore.
View Quote


LC Brass
24.5gr TAC
75gr BTHP
Rem 7-1/2 Primer
2.25" OAL

I'm at sea level with 2000% humidity lol. I've always liked the 75 as it has a slightly higher BC than 77 SMK.

Recce had a CLE Match chamber. Mk12 is a 2014 production HCS barrel.

What's your velocity with that load at what elevation?
Link Posted: 7/13/2024 8:34:53 AM EST
[#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:


LC Brass
24.5gr TAC
75gr BTHP
Rem 7-1/2 Primer
2.25" OAL

I'm at sea level with 2000% humidity lol. I've always liked the 75 as it has a slightly higher BC than 77 SMK.

Recce had a CLE Match chamber. Mk12 is a 2014 production HCS barrel.

What's your velocity with that load at what elevation?
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Originally Posted By Eyekahn:
Originally Posted By towerofpower94:


Interesting. Wonder if the Recce has a throat that’s a tad shorter or some other characteristic that’s causing the pressure spike.

Mind sharing the load data? My go to is a 77gr SMK or TMK over 23.6gr of 8208, lit by a Rem 7.5 SRP in once fired LC brass. I used to anneal the once fired LC before processing, but I did a head to head test and the annealing didn’t really improve the ES/SD or accuracy, so I don’t do it anymore.


LC Brass
24.5gr TAC
75gr BTHP
Rem 7-1/2 Primer
2.25" OAL

I'm at sea level with 2000% humidity lol. I've always liked the 75 as it has a slightly higher BC than 77 SMK.

Recce had a CLE Match chamber. Mk12 is a 2014 production HCS barrel.

What's your velocity with that load at what elevation?


I’m in NoVA, so basically sea level. Def <1000ft ASL wherever I shoot in VA or WV.

Both uppers are from PRI with Douglas barrels, I believe.

Mk 12 Mod H suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Once fired LC
OAL 2.255”
Headspace 1.451”
No FCD crimp

20rd group

Lo: 2597
Hi: 2681
Avg: 2635
ES: 84
SD: 21.5


Mk 12 Mod 0 suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Annealed once fired LC
OAL 2.255”
No FCD crimp

15rd group

Lo: 2653
Hi: 2730
Avg: 2692
ES: 77
SD: 24.9
Link Posted: 7/13/2024 12:34:28 PM EST
[#31]
Link Posted: 7/13/2024 12:59:07 PM EST
[#32]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By towerofpower94:


I’m in NoVA, so basically sea level. Def <1000ft ASL wherever I shoot in VA or WV.

Both uppers are from PRI with Douglas barrels, I believe.

Mk 12 Mod H suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Once fired LC
OAL 2.255”
Headspace 1.451”
No FCD crimp

20rd group

Lo: 2597
Hi: 2681
Avg: 2635
ES: 84
SD: 21.5


Mk 12 Mod 0 suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Annealed once fired LC
OAL 2.255”
No FCD crimp

15rd group

Lo: 2653
Hi: 2730
Avg: 2692
ES: 77
SD: 24.9
View Quote



Any certain reason you went with that load? Seems you have room to get more speed in the mod 0 and maybe get that SD down too.

Pic thread.




Link Posted: 7/13/2024 2:04:31 PM EST
[#33]
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

Link Posted: 7/13/2024 3:12:54 PM EST
[#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zakk_Wylde_470:
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

https://i.imgur.com/cfYGpWu.jpg
View Quote


Mount it to the gun and paint it all together.  Don't overthink it.  
Link Posted: 7/13/2024 3:14:10 PM EST
[#35]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zakk_Wylde_470:
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

https://i.imgur.com/cfYGpWu.jpg
View Quote

There's no reason to paint it since it will be hidden from view, but it won't hurt anything.
Link Posted: 7/13/2024 3:14:56 PM EST
[#36]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Engineer5:


Mount it to the gun and paint it all together.  Don't overthink it.  
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Originally Posted By Engineer5:
Originally Posted By Zakk_Wylde_470:
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

https://i.imgur.com/cfYGpWu.jpg


Mount it to the gun and paint it all together.  Don't overthink it.  

Yup
Link Posted: 7/13/2024 3:29:44 PM EST
[#37]
Link Posted: 7/13/2024 3:31:34 PM EST
[Last Edit: Zakk_Wylde_470] [#38]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

Yup
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Originally Posted By SecretSquirell:
Originally Posted By Engineer5:
Originally Posted By Zakk_Wylde_470:
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

https://i.imgur.com/cfYGpWu.jpg


Mount it to the gun and paint it all together.  Don't overthink it.  

Yup


No need, most of the rest of it is already some shade of brown



Although I should probably hit the bipod at the same time as the scope 🤔
Link Posted: 7/13/2024 3:38:06 PM EST
[#39]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zakk_Wylde_470:


No need, most of the rest of it is already some shade of brown

https://i.imgur.com/y1Rd4dk.jpg

Although I should probably hit the bipod at the same time as the scope
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Doesn't mean you can't spray it. It'll look better with the whole rifle having the same pattern
Link Posted: 7/13/2024 3:44:54 PM EST
[#40]
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Originally Posted By thatARMSguy:
Doesn't mean you can't spray it. It'll look better with the whole rifle having the same pattern
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Originally Posted By thatARMSguy:
Originally Posted By Zakk_Wylde_470:


No need, most of the rest of it is already some shade of brown

https://i.imgur.com/y1Rd4dk.jpg

Although I should probably hit the bipod at the same time as the scope
Doesn't mean you can't spray it. It'll look better with the whole rifle having the same pattern


No pattern on this, just straight Rust-Oleum camo khaki. Assuming it goes well I'll try it with the rest of the colors and some netting when the rest of my Block I shows up next week.
Link Posted: 7/13/2024 4:09:03 PM EST
[#41]
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Originally Posted By thatARMSguy:
Doesn't mean you can't spray it. It'll look better with the whole rifle having the same pattern
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Originally Posted By thatARMSguy:
Originally Posted By Zakk_Wylde_470:


No need, most of the rest of it is already some shade of brown

https://i.imgur.com/y1Rd4dk.jpg

Although I should probably hit the bipod at the same time as the scope
Doesn't mean you can't spray it. It'll look better with the whole rifle having the same pattern

Link Posted: 7/13/2024 4:51:34 PM EST
[#42]
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Originally Posted By Eyekahn:



Any certain reason you went with that load? Seems you have room to get more speed in the mod 0 and maybe get that SD down too.

Pic thread.

https://i.imgur.com/5MDrkcj.jpeg


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Originally Posted By Eyekahn:
Originally Posted By towerofpower94:


I’m in NoVA, so basically sea level. Def <1000ft ASL wherever I shoot in VA or WV.

Both uppers are from PRI with Douglas barrels, I believe.

Mk 12 Mod H suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Once fired LC
OAL 2.255”
Headspace 1.451”
No FCD crimp

20rd group

Lo: 2597
Hi: 2681
Avg: 2635
ES: 84
SD: 21.5


Mk 12 Mod 0 suppressed with OCM5
8208 XBR 23.6gr
77gr TMK
Rem 7.5 SRP
Annealed once fired LC
OAL 2.255”
No FCD crimp

15rd group

Lo: 2653
Hi: 2730
Avg: 2692
ES: 77
SD: 24.9



Any certain reason you went with that load? Seems you have room to get more speed in the mod 0 and maybe get that SD down too.

Pic thread.

https://i.imgur.com/5MDrkcj.jpeg




I developed that load years ago for a 10.3” Colt and an 18” DD and have just stuck with it for all my 5.56 ARs. It’s over .223 max, but I’ve never seen pressure signs. I know others have gone higher, but I’m just lazy at this point and don’t want to do load dev for every rifle again if I’m going to climb towards 24.0gr or higher. 8208 XBR gets spiky at the top end and I wouldn’t trust every rifle shooting it safely unless I took all half dozen uppers out and ran 23.8, 24.0, 24.2, 24.4, etc loads through them. I’d want to go that high, or higher, on a ladder as I load my 5.56 on a Dillon 650 and it’ll throw 8208 +/- .2gr with good technique. For load dev I use my Super Trickler to get bang on charge weights, but I want to know if I go .2-.3gr higher than my target weight on the 650 I won’t be in dangerous territory.
Link Posted: 7/13/2024 4:52:44 PM EST
[#43]
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Originally Posted By Engineer5:


Mount it to the gun and paint it all together.  Don't overthink it.  
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Originally Posted By Engineer5:
Originally Posted By Zakk_Wylde_470:
Silly question time. Trying to work up the courage to paint my Block I once it's finished, and I figured I'd start with the scope and mount from my Holland. Aside from the important bits of the scope itself, do I need to mask any of the mounting surfaces of the LT104?

https://i.imgur.com/cfYGpWu.jpg


Mount it to the gun and paint it all together.  Don't overthink it.  


What this guy said. Get it put together and zeroed, and then paint it.
Link Posted: 7/13/2024 4:56:28 PM EST
[#44]
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Originally Posted By rbgonoles:



Nice!

I was looking at doing a Gen II. Is the front sight cross bolt or set screw?
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Thanks!  Set screw. It’s one of the original set screw FSB’s as found on the issued early mod 0’s. I think PRI makes a repro though I haven’t looked at it enough to say how faithful of a repro it is. But I imagine it’d look the part.  

As for the rest, this particular build is effectively a gen 2 modified to mimic a gen 1 - though I still need to get some correct picatinny accessory rails.  Using a repro barrel nut and modified tube, ARMS sleeve, SPR take off vari-x III, old style brake with the additional threads.  The CH has an original solid welded latch on a gas buster I had NP3 coated to mimic what was used on the original SPR’s.  It’s been a super fun project trying to recreate the original gen 1’s.  

Still have some work to do but it’s been a fun project.  Lots of help from a far more knowledgeable friend to get it this far, but man it is a shooter!

Attachment Attached File


Link Posted: 7/14/2024 1:39:06 AM EST
[#45]
Is there any difference between the HCS and PRI version of the Douglas 18" barrel for a Mod 1? I am at the point where I need a barrel and the PRI is available now and the HCS is available in a few weeks. I think I would prefer the HCS for no real reason other than I believe the gray coating is more authentic looking. I assume they are both equally accurate? Also, I hear the PRI barrel set screw dimples are not spaced properly for the DD MK12 gas block and only one lines up. Is this just internet rumor?
Link Posted: 7/14/2024 8:39:09 AM EST
[#46]
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What's the wrap on the rail?
Link Posted: 7/14/2024 10:12:36 AM EST
[#47]
I was wanting to buy a Pri mod h rifle.  I already have a pri mk12 mod 0 upper with a 1/8 and with BH 262 ammo it is super accurate.  Should i get the 1/8 twist for the mod h or the faster spin of 1/7?  I am only shooting 77 grain BH pills.  Thoughts?  

Thanks!
Link Posted: 7/14/2024 10:23:41 AM EST
[#48]
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Originally Posted By Wubaru:
I was wanting to buy a Pri mod h rifle.  I already have a pri mk12 mod 0 upper with a 1/8 and with BH 262 ammo it is super accurate.  Should i get the 1/8 twist for the mod h or the faster spin of 1/7?  I am only shooting 77 grain BH pills.  Thoughts?  

Thanks!
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i'd get the 1:7 twist for 77gr
Link Posted: 7/14/2024 10:30:49 AM EST
[#49]
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Originally Posted By BravoSierra:


What's the wrap on the rail?
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Originally Posted By BravoSierra:


What's the wrap on the rail?

Lunar Concepts Hot Pocket
Link Posted: 7/14/2024 11:13:59 AM EST
[Last Edit: teamjawbox] [#50]
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Originally Posted By keanenk:
Is there any difference between the HCS and PRI version of the Douglas 18" barrel for a Mod 1? I am at the point where I need a barrel and the PRI is available now and the HCS is available in a few weeks. I think I would prefer the HCS for no real reason other than I believe the gray coating is more authentic looking. I assume they are both equally accurate? Also, I hear the PRI barrel set screw dimples are not spaced properly for the DD MK12 gas block and only one lines up. Is this just internet rumor?
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I’ve got both and prefer the HCS if for no other reason than the coating is more accurate for a clone.  That said, the last barrel I got from Kevin a couple years ago is prob the nicest 18” MK12 barrel I own and as mentioned the finish is more correct for the mod 0/mod 1 also.  I have both and both are nice.  I just prefer the detail HCS adds with the more correct coating on the barrel.  All things being equal just comes down to whether the coating matters to you. Other than that not much difference.  Neither have the correct exterior chamber profile these days.  So I like having that extra detail of the more correct finish.  And I think HCS is cheaper price than PRI these days.
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