Got some loaded up at roughly 2.245 over Shooter's World Tactical Rifle. Starting at 20.7 gr and working up by .3 to 22.8 gr. Hopefully I can get out and test these in the next couple weeks.

Got around to playing with this out of a 16” barrel.  Not great results but promising for a long range plinking load.

25.3gr of TAC brought some smears and raised some pretty good burrs in a 16” WOA barrel.

I am thinking about focusing around 24.4/5 of 8208 XBR but I really wanted a bit more velocity.



-Mike

Guy from shooters world says push them if you have a 5.56 chamber  he recommends 2.245 and 26.2gn match rifle work up accordingly. 26.2 is a full grain under max

Has anyone worked out a reliable BC for these?  

Trying to put together a rough table to go test out next weekend.

-Mike

Good to know. I've got an 8# jug of match rifle, but I have 14# of tactical rifle so I figured I'd start with it. Haven't tested them yet, but I will soon hopefully.

Use 69SMK factory data.

Guy from shooters world says push...

(I hate my phone)

That's how I interpreted that...

Has anyone shot these into gel or water by chance?

I think I am at a comfortable spot with this bullet.  25.0gr of 8208 XBR had me at 2850fps out of a 16” barrel.  I am getting some mild pressure signs here so I am at my max in a Wylde chambered WOA barrel.

It’s enough to get me out to my maximum range which is 600yds.  But if the sound is any indication there isn’t much left when it gets there.





Now I want to go play with RMR’s new 75gr bullet.

-Mike

I never could get these to shoot very well in my two rifles. I loaded them up for plinking.

24.0 TAC with the 69 RMR yesterday.

200 yards

Sling-supported only.

4.5x scope

White Oak basic service rifle upper

10-ring of target is about 2moa

Ignore the SD reported by the e-target. My target had an issue with one of the sensors. So, while it was reporting shot location ok, I don’t trust the velocity or SD report.

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The MR-52 has a small X ring.

I'm assuming you shot those at magazine length? What are your impressions of the RMR bullets, a buddy of mine got 2K or the 75s and we tested them yesterday. They seemed ok, nothing spectacular but solid performance.

B

Yes, all fired at magazine length.

I'm very satisfied with the RMR 69's.

Have not tried any of the new RMR 75's.

Brass was Federal on second firing.
CCI 450 primer.

Everybody who I've heard complain about the RMR bullets was pushing maximum SAAMI pressure.
I have no idea why people think they need to do that.

My load with the 69's and 24.0 grains TAC is only running muzzle velocity of high 2600's.

The difference in wind deflection out to 300 yards with 100 fps increased velocity is minimal

Do we have a thread for the new 75gr bullet?

Anyone else actually shoot groups with BL-C2 loads?

I only had a bit of powder left and loaded up 30 with 24.5gr loaded to 2.235 OAL (basically the starting published load for 69gr SMK) but only got to shoot 10 of 'em on a gusty day.  Looks like an honest 1" group to me, need to get more powder and do a proper ladder load up and more testing.

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Nice. What barrel length, twist, make?

I'll FINALLY be shooting my Tactical Rifle load ladder tomorrow. Going to shoot for groups, but I'm going to load up 10-15 more of my highest load to Chrono from my Criterion Core 12.5, as well as see if it will cycle my Geissele 10.3. It is still well under the 5.56 data, but the G barrel needs fairly hot ammo to cycle unsuppressed with an H1.

Savage 12FV 26" 1:9 barrel

This is kinda the boat I’m in. I’ve got 5,000 of these and a WOA 18” SPR barrel sitting around. I’ve got a reasonable variety of powders, but no Varget or 8208.

N133
H335
2460
Tac
N530
N135
2520
748
BL-C(2)
CFE 223

If anyone has any suggestions for these or would like me to try them and report back, that’d be cool. I’m going to be shooting these at 500 yd field matches and UKD ranges.

Those of you that are having good results with Tac, what barrel and length?



The way that I think nodes work, can I expect that the best results from these 69s will occur at about that velocity when using an 18” stainless SPR barrel? I think I’d be happy with that velocity or maybe a little more.

I'm not entirely sure how that works.

I got out on Sunday to test my Shooter's World Tactical Rifle load ladder. Info on it is very scarce, but I did find someone on the RMR Bullets forum saying they like 22.8gr and another saying 24gr. Shooter's World lists 23gr as the max .223 load for 69gr and 24.7 as the max load for 5.56. My ladder started at 20.7 and worked up to 22.8 in .3gr increments by hand, 5 rounds each, all loaded to 2.245". I then loaded up another 20 rounds at 22.8gr using my Lee Measure to chrono and test in my small gas port Geissele 10.3" build.

My goal for the 69gr is to replace my diminishing stash of 75gr PPU over 22.8gr of H335. I do not sort brass and have zero desire to. The goal is to end up with a round that I can consistently shoot 1.5-2" and I will shoot it exclusively (HD, plinking, 2-gun, Cola Warrior, etc.). I'll switch to it when I run out of my 75gr and 55gr loads. I tested these loads with the below pictured rifle. Geissele receivers, G REBCG, G Super 42/H2, 12.5" Criterion Core w/Badger gas block, G SSA-E trigger, ADM Delta mount with Delta Stryker HD 1-6 w/DGMR reticle. I did use a Magpul MLOK bipod with zero support at grip or stock. I started off confirming zero with the 75gr loads. Checked at 25 which was a cloverleaf, then shot 3 groups at 100. Those were 2-2.5". I then shot a group of 75gr Hornady Match and it was 2.5" or so, followed by 69gr Federal Gold Medal which was about 1.6".  I am not a paper shooter and am a 1.5-2" group shooter on a good day. Under 1" is the rare/lucky group for me even with match ammo.

I then shot my ladder. Nothing stood out to me as super accurate, but 22.8gr had the best potential. It always drives me crazy when people say they pull a round, but my second shot felt low. It caused that group to be about 2.5" and would have been 2.15" without. There were no pressure signs with any of the loads. All loads functioned the rifle as a semi-auto, but I don't remember the bolt locking back on 20.7gr. I think I am going to load some more at 22.8gr as well as 23.1gr and 23.4gr. I will also play with OAL a little. I will also finish my build with 16" Triarc barrel and 4-16x Swampfox. I think I will be able to tighten things up a little that way. I may also try to borrow a buddy's sled. The 10.3" build functioned on the 22.8gr with an H1 buffer, but did not lock back on empty. I'm hoping the suppressor for it will be out of jail in the next 2-4 months (July 5th submission). I kind of want to push powder a little higher to get it to lock back on empty with no suppressor and the H1, which will hopefully lock back with Super 42 and H3 with the suppressor (Turbo T2).

ETA: forgot to say it was 35 degrees, cloudy, and no noticeable wind.

Rifle used:
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Chrono data (powder measure, not hand measured):
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There is a shooters world group on the book of face.

Ken Johnson from SW posts on there regularly.

On a 69 gr using match rifle powder he recommended not to treat them like 223 but 5.56 and push them.

Might want to try exploring the top end... but I don't have tactical. I have ar-plus, match rifle and Precision.

Thread on the book of face (may need to join the group):

https://m.facebook.com/groups/shootersworldpowder/permalink/754641451998123/

I'm in that group. I commented on another post about Tactical Rifle and haven't gotten any responses. I may just start my own post.

Tested 23.1gr and 23.4gr yesterday. Tested them in my 16" Triarc barreled AR with 4-16X Swampfox. Also tested 1 round of each in the 10.3 to see if they would lock it back. Both rounds had enough gas to lock it back.

I need to retest 23.1 as I totally bump fired a round and it was nowhere on paper.... However, the other 4 were were a close group of .93". 23.4 was a group of 1.56". Neither had pressure signs so I may step up again, unless 23.1 retests in the 1" range
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Finally shot my retest of 23.1gr of Shooter's World. I loaded 20 rounds at 2.245 and 20 rounds at 2.235. I chrono'd 5 each in my 12.5" Criterion Core and Triarc 16" barrels as well as shot a 5 round group of each through each. I am just not a tiny group shooter .

OAL did no affect the velocity. Both sets of 5 in the 16" had the exact same average and the sets through the 12.5" were 19 fps apart. This is mixed brass and CCI #450 primers. I am sure sorting brass would helps with a few things, but I do not care to.
12.5" @ 2.245 - 2,552 FPS, ES - 58 FPS, SD - 19 FPS
12.5" @ 2.235 - 2,533 FPS, ES - 62 FPS, SD - 25 FPS (Only 4 rounds of the 5 were captured)
16" @ 2.245 - 2,711 FPS, ES - 38 FPS, SD - 14 FPS
16" @ 2.235 - 2,711 FPS, ES - 84 FPS, SD - 29 FPS

I didn't shoot as well today, but I think I am going to move forward with 23.1 gr at 2.235. It runs my reduced gas port barrels well with and without suppressors, and I am going to be running this in bulk on my LNL AP. I'll load up a few thousand and use it for plinking, drills, and Cola Warrior which goes out to 550. My 75 gr PPU load over 22.8gr of H335 has WAY higher SD & ES, is much slower, and I've cleared CWNW out to 500/550 with it twice without issue. This load seems like it will be more consistent and a touch more accurate. The target below is all from my 16" AR from before, but I swapped the rail last week and didn't re=zero before these groups. Top left is SWTR @ 2.245, top right is SWTR @ 2.235, center is Hornady Match .223 75gr, bottom left is Federal Gold Medal 69gr, and bottom right is Federal Gold Medal 77gr. My 2 groups from my 12.5 were off paper as my EOTech is zero'd at 50 yards with my 75gr PPU load. The top left shot and top shot of the SWTR rifle groups were both the first round. I'll try to get a 10 round group or two on paper in the next month or two.

Ultimately I think this shows I am just not a tight group paper shooter. My eyes were strained after these 7 groups. I think more time doing this and working on fundamentals would help, but I don't care to do that...lol.
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Tried this same load today in my new Howa mini, had to run it single shot.  Gave a 2" 5 shot group at 100

Need to reseat the 10 I have left and try again, but I need more powder to do any real workup

You are SPOT ON with is, though.  

Shooters and competitors (try to) do this ultra-precise shooting to find the most accurate load possible but it really isn't needed for most people.

The rigor required to measure the difference between loads is not insignificant.  It involves full-blown benchrest shooting gear (including telescopic sights) and benchrest shooting techniques and skills.  It also requires a lot of rounds.

By the time you do all that, you are miles away from iron sight shooting an across the course match (for example).  It can be a HUGE, expensive distraction from what you're interested in.

Even then, when the shooter is only capable 2 MOA, the 1/4 or 1/2 MOA difference between loads is totally irrelevant (just an example).  Heck, even 1 MOA makes little difference.

Get a decent load and shoot it.  Don't waste time, money and barrel life testing and retesting.  Learn to dope the wind and mirage.

If the shooter gets to the point where they can detect the inaccuracy of the ammo in their scores*, then you have a reason to improve the load.  Until then,... just shoot.


*  When you KNOW you missed a "clean" or a high "X count" because of the load, it's time.

I shot a YAHTZEE on offhand today.

I’m sure it had nothing to do with me being old and out of shape and the heat index being 95.

I blame the ammo.

Those crummy 77SMK’s.

Should have shot my RMR’s!

I cant get these to shoot worth a damn out of my ARs but my Ruger ranch loves them, sub 1/2" at 100.

5 shot group with 23.4 gr of SWTR got an average velocity of 2,751 FPS out of my 16" Triarc with Resonator K on it. ES of 35 FPS and SD or 12 FPS. 88 degrees at the time.

Checking zero and winter Chrono before cola warrior northwest next week. This was with my Turbo K instead of Resonator K. Shot a couple 1.5" groups as well as .9", 1.2", and 1.3". I'm super happy with that for mixed brass and cranking these out on a progressive. Bipod and bag for the rear.

Testing again from the other weekend… the 69’s still don’t love TAC, but the 75’s do!
Shot at 100 yards through my 20” Bartlein AR…

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I miss counted on this one and only shot 4.   I have been getting similar results with the 69g RMR, 24.2 TAC @2.55