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TX, USA
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Posted: 5/12/2024 1:59:47 AM EDT
Does anyone have a video or shooting session written review of the steyr 300blk barrel with subs and a common non-flow through can like a sandman s or surefire socom? Wanted to get feedback on reliability and only see heresy reviews on YouTube so far and just marketing video from steyr when they released since they are still quite new.
If people have feedback on which is better (Heresy vs Steyr) is appreciate some feedback too |
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Posted: 5/12/2024 6:31:51 AM EDT
[#1]
I have a friend who purchased one amd ai allso have one on the way- will let you know as soon as I have a chance to put some rounds through it!
Sven Manticore Arms |
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TX, USA
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Posted: 5/12/2024 7:19:03 AM EDT
[#2]
I've been waiting on the Steyr & didn't even know they were available yet.
I'll order one. |
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VA, USA
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Posted: 5/12/2024 7:48:59 AM EDT
[#3]
I have the standard non nato version. Do the 42 round waffle mags work with the 300 blkout rounds?
I’d like to convert mine to 300 but I’m not down to buy new magazines all over again. |
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Posted: 5/12/2024 11:48:35 AM EDT
[Last Edit: gqllc]
[#4]
Quote HistoryOriginally Posted By NYShaDe45: I have the standard non nato version. Do the 42 round waffle mags work with the 300 blkout rounds? I’d like to convert mine to 300 but I’m not down to buy new magazines all over again. I have heard mixed reviews about the 42 round 5.56 mags from Steyr when loading them with 300blk. I bought the barrel and I mounted the cherry bomb and hoping to shoot it next weekend. |
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Posted: 5/13/2024 1:35:04 AM EDT
[#5]
I just ordered the .300 BLK barrel.
What suppressor are people recommending? |
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TX, USA
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Posted: 5/13/2024 6:37:45 PM EDT
[#6]
From what I could gather I think they recommended something with higher back pressure so no flow throughs. Hoping that it would work well with a Sandman S or SureFire SOCOM, but I don’t own a 300blk aug yet.
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Posted: 5/14/2024 10:36:48 AM EDT
[#7]
I emailed Brian at Steyr, he says they have been using the AAC SDN-6, the AlleyCat 762, and the new B&T.
I’ll have to talk to SilencerShop when I’m ready to plunk some $$ down. |
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TX, USA
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Posted: 5/15/2024 12:19:33 AM EDT
[#8]
Quote HistoryOriginally Posted By jkirkon: I emailed Brian at Steyr, he says they have been using the AAC SDN-6, the AlleyCat 762, and the new B&T. I’ll have to talk to SilencerShop when I’m ready to plunk some $$ down. That’s a super random list. Literally none of those are particularly popular cans from my understanding lol. Did he say anything about some of the more common usa offerings? |
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Posted: 5/15/2024 1:09:05 AM EDT
[#9]
Quote HistoryOriginally Posted By henryfrank: That’s a super random list. Literally none of those are particularly popular cans from my understanding lol. Did he say anything about some of the more common usa offerings? I listed the 3 cans he mentioned. |
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Posted: 5/15/2024 11:45:56 PM EDT
[#10]
Still no range report on one of these? I'm amazed!
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TX, USA
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Posted: 5/16/2024 11:04:28 AM EDT
[#11]
Quote HistoryOriginally Posted By campower: Still no range report on one of these? I'm amazed! Been super surprised too. Here was one, but no suppressor info unfortunately: https://www.reddit.com/r/AUG/s/LdNVB4uq1x |
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Posted: 5/17/2024 12:06:59 AM EDT
[#12]
My barrel was delivered today, but unfortunately, I’m out of town on business
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Posted: 5/27/2024 3:04:13 AM EDT
[#13]
Finally returned from my business trip, here are a few pics of the Steyr .300 BLK AUG barrel.
The notch in the forward grip to accommodate the larger gas block is interesting. Gas block has 6 positions. Muzzle device is an A2 style. USA made as per markings.  Attached File Attached File Attached File Attached File |
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Posted: 5/27/2024 3:05:15 AM EDT
[Last Edit: jkirkon]
[#14]
 Attached File Attached File Attached FileSteyr recommends a ‘non flow through’ suppressor, which I presume to be a higher back pressure can. I will be shopping for a suppressor soon… |
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Posted: 5/27/2024 7:57:53 PM EDT
[#15]
Very interested in the performance between the two barrel and any validation the waffle mags work
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Posted: 6/1/2024 6:12:16 PM EDT
[Last Edit: jkirkon]
[#16]
Went and shot the .300 BLK barrel in my AUG today.
Not really a ‘range report’, per se, and by no means scientific, just wanted to have a little plinking play, and mess around with the gas port settings a little. At this time, I didn’t care much about accuracy, as I was at an indoor range, and only shooting 25yds max. I fired about 60 rounds. 40 147gr S&B SuperSonics. Cycled perfectly with them, using gas block setting #2 (standard setting ) mostly. Also ran setting #1 (low gas setting), the rifle cycled perfectly as well. I also fired about 20 rounds of Ammo Inc 220gr subsonic. Unsuppressed (since I don’t yet have a suppressor for this gun). The ‘LV’ setting is supposed to be for subsonic suppressed, but I used it to see if it would cycle this ammo without a can. I found that 8/10 rounds fully cycled and loaded the next round in the mag. 2 didn’t not. Next 10 rounds of subsonic were fired with gas block in the #2 setting. 10/10 cycling. When I got home, I found that I could not rotate the gas plug to remove it. It was pretty stuck. A pair of needle nose pliers and a tap with a plastic mallet loosened it up and I removed the piston and spring. Pretty dirty from just 60 rounds, especially compared to my 5.56 barrels piston after a 2-300 round session. Tossed them in the ultrasonic cleaner and they look good as new. I look forward to getting a suppressor, and a real range testing trip to see what it can do. On a side note, I used regular PMags (my AUG is a NATO model), and as expected, they functioned flawlessly with the .300BLK rounds. I’m going to have to mark them as dedicated .300 mags, so I don’t fuck up and confuse them with my 5.56 mags. |
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VA, USA
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Posted: 6/4/2024 1:52:57 AM EDT
[#17]
Quote HistoryOriginally Posted By jkirkon: Went and shot the .300 BLK barrel in my AUG today. Not really a ‘range report’, per se, and by no means scientific, just wanted to have a little plinking play, and mess around with the gas port settings a little. At this time, I didn’t care much about accuracy, as I was at an indoor range, and only shooting 25yds max. I fired about 60 rounds. 40 147gr S&B SuperSonics. Cycled perfectly with them, using gas block setting #2 (standard setting ) mostly. Also ran setting #1 (low gas setting), the rifle cycled perfectly as well. I also fired about 20 rounds of Ammo Inc 220gr subsonic. Unsuppressed (since I don’t yet have a suppressor for this gun). The ‘LV’ setting is supposed to be for subsonic suppressed, but I used it to see if it would cycle this ammo without a can. I found that 8/10 rounds fully cycled and loaded the next round in the mag. 2 didn’t not. Next 10 rounds of subsonic were fired with gas block in the #2 setting. 10/10 cycling. When I got home, I found that I could not rotate the gas plug to remove it. It was pretty stuck. A pair of needle nose pliers and a tap with a plastic mallet loosened it up and I removed the piston and spring. Pretty dirty from just 60 rounds, especially compared to my 5.56 barrels piston after a 2-300 round session. Tossed them in the ultrasonic cleaner and they look good as new. I look forward to getting a suppressor, and a real range testing trip to see what it can do. On a side note, I used regular PMags (my AUG is a NATO model), and as expected, they functioned flawlessly with the .300BLK rounds. I’m going to have to mark them as dedicated .300 mags, so I don’t fuck up and confuse them with my 5.56 mags. |
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AZ, USA
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Posted: 6/10/2024 11:56:54 AM EDT
[#18]
I would like to know how is the port pop on these barrels? And how is it under night vision. Are the additional gas settings more for setting for weaker loads and subsonics? Or can you adjust it to reduce the port blast?
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Posted: 6/10/2024 12:58:59 PM EDT
[Last Edit: jkirkon]
[#19]
Quote HistoryOriginally Posted By Doug_262: I would like to know how is the port pop on these barrels? And how is it under night vision. Are the additional gas settings more for setting for weaker loads and subsonics? Or can you adjust it to reduce the port blast? Here are the instructions for the gas port settings. When I get back home I’m going suppressor shopping, so will find out about port pop hopefully soon. .300 BLK gas settings. |
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AZ, USA
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Posted: 6/10/2024 2:16:24 PM EDT
[#20]
That you for posting that link.
Interesting that they state the red springs are required with specific ammunition. |
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Posted: 6/10/2024 2:27:14 PM EDT
[#21]
Quote HistoryOriginally Posted By Doug_262: That you for posting that link. Interesting that they state the red springs are required with specific ammunition. I don’t use the red springs but I do have the 2020 sear. I kinda doubt the red springs will be needed. |
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Posted: 6/15/2024 8:49:12 AM EDT
[Last Edit: lazyengineer]
[#22]
Quote HistoryOriginally Posted By jkirkon: I don’t use the red springs but I do have the 2020 sear. I kinda doubt the red springs will be needed. Quote HistoryOriginally Posted By jkirkon: Originally Posted By Doug_262: That you for posting that link. Interesting that they state the red springs are required with specific ammunition. I don’t use the red springs but I do have the 2020 sear. I kinda doubt the red springs will be needed. They might. Getting enough gas with .300 BO can be a thing, and the stock factory trigger springs can run as struts for an F150 axel, just about. It's a lot of additional force the strained gas system has to overcome. Seriously, after swapping them out in my trigger group, I had to shake my head at the absurd power level those factory springs are |
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Posted: 6/15/2024 10:49:25 AM EDT
[Last Edit: Manticore_Arms]
[#23]
Quote HistoryOriginally Posted By lazyengineer: They might. Getting enough gas with .300 BO can be a thing, and the stock factory trigger springs can run as struts for an F150 axel, just about. It's a lot of additional force the strained gas system has to overcome. Seriously, after swapping them out in my trigger group, I had to shake my head at the absurd power level those factory springs are Quote HistoryOriginally Posted By lazyengineer: Originally Posted By jkirkon: Originally Posted By Doug_262: That you for posting that link. Interesting that they state the red springs are required with specific ammunition. I don’t use the red springs but I do have the 2020 sear. I kinda doubt the red springs will be needed. They might. Getting enough gas with .300 BO can be a thing, and the stock factory trigger springs can run as struts for an F150 axel, just about. It's a lot of additional force the strained gas system has to overcome. Seriously, after swapping them out in my trigger group, I had to shake my head at the absurd power level those factory springs are If you think the hammer pack springs are bad, try taking out or putting in the recoil springs, it is just straight up ridiculous how much spring is packed in those rods! Sven Manticore Arms |
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Posted: 6/16/2024 3:19:57 PM EDT
[#24]
I have a set of the red springs in my spares kit, but never installed them.
I think I’ll experiment a bit when I get the suppressor and see if they are needed. |
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TX, USA
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Posted: 6/20/2024 2:40:11 PM EDT
[#25]
Thanks for the reports! Hoping we can get some more info on how it behaves suppressed too soon as I think that’s the big question mark right now.
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Posted: 6/27/2024 5:52:51 PM EDT
[#26]
Suppressor is in NFA jail, hope my stamp follows the current trend and gets approved soon.
I’m not that lucky, though. |
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TX, USA
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Posted: 7/24/2024 2:36:32 PM EDT
[#27]
Wanted to bump this after about a month. Anyone have any opinions on it with a suppressor? Very shocked how quiet it’s been with this launch.
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Posted: 7/24/2024 2:41:28 PM EDT
[#28]
Any kabooms yet?
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Posted: 7/24/2024 3:07:15 PM EDT
[Last Edit: jkirkon]
[#29]
My experience in this thread, post #17. No kabooms yet.
https://www.ar15.com/forums/Armory/Suppressing-a-Aug-worth-it-/43-552278/?page=1&anc=6104220#i6104220 |
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Posted: 8/4/2024 10:40:30 PM EDT
[#30]
I’ve got a black one I bought as a set with a 5.56 barrel. I’ be not chat the .300 BLK yet.
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TX, USA
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Posted: 8/4/2024 11:10:38 PM EDT
[#31]
I've got the 14.5 556 Heresy barrel; run it suppressed only. Very limited time on the gun but zeroed well and shot a very respectable group during zeroing.
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Posted: 8/4/2024 11:44:29 PM EDT
[#32]
Quote HistoryOriginally Posted By henryfrank: From what I could gather I think they recommended something with higher back pressure so no flow throughs. Which is interesting because the flow through suppressors are the best suppressors for the 5.56 version |
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NC, USA
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Posted: 8/13/2024 4:20:10 PM EDT
[#33]
Quote HistoryOriginally Posted By AEROMechanic: Which is interesting because the flow through suppressors are the best suppressors for the 5.56 version Quote HistoryOriginally Posted By AEROMechanic: Originally Posted By henryfrank: From what I could gather I think they recommended something with higher back pressure so no flow throughs. Which is interesting because the flow through suppressors are the best suppressors for the 5.56 version Very true. But given that this 300blk gas system is way longer than what most people use with 300blk, it doesn't surprise me in the lease. |
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OR, USA
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Posted: 8/13/2024 6:57:25 PM EDT
[#34]
Quote HistoryOriginally Posted By SpyHawk: Very true. But given that this 300blk gas system is way longer than what most people use with 300blk, it doesn't surprise me in the lease. Where is it located on the Aug in 300blk? The Mdr/Wlvrn is at the 9" mark and the X95 is at the 8" mark for the gas block location. |
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Posted: 8/13/2024 7:08:49 PM EDT
[#35]
Quote HistoryOriginally Posted By Odinforever2000: Where is it located on the Aug in 300blk? The Mdr/Wlvrn is at the 9" mark and the X95 is at the 8" mark for the gas block location. Port is about 11.5” from the breech end of the barrel, which roughly put the gas port 8.5-9” from the chamber.  Attached File |
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OR, USA
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Posted: 8/13/2024 7:59:38 PM EDT
[#36]
Quote HistoryOriginally Posted By jkirkon: Port is about 11.5” from the breech end of the barrel, which roughly put the gas port 8.5-9” from the chamber. https://www.ar15.com/media/mediaFiles/284805/IMG_0167_jpeg-3293716.JPG So..similar to the other bullpups..Interesting |
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Posted: 8/13/2024 8:49:45 PM EDT
[#37]
Quote HistoryOriginally Posted By Odinforever2000: So..similar to the other bullpups..Interesting Quote HistoryOriginally Posted By Odinforever2000: Originally Posted By jkirkon: Port is about 11.5” from the breech end of the barrel, which roughly put the gas port 8.5-9” from the chamber. https://www.ar15.com/media/mediaFiles/284805/IMG_0167_jpeg-3293716.JPG So..similar to the other bullpups..Interesting I re-read what I wrote, and it didn’t sound right…let’s try it again: The gas port in the factory AUG .300BLK barrel is approximately 11.5” from the breech end. Given the length of a .300BLK case is about 1.75”, the gas port is about 9.75” from the case mouth and beginning of the rifling. Does that make more sense? |
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NC, USA
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Posted: 8/14/2024 6:41:12 AM EDT
[#38]
Quote HistoryOriginally Posted By jkirkon: I re-read what I wrote, and it didn’t sound right…let’s try it again: The gas port in the factory AUG .300BLK barrel is approximately 11.5” from the breech end. Given the length of a .300BLK case is about 1.75”, the gas port is about 9.75” from the case mouth and beginning of the rifling. Does that make more sense? Quote HistoryOriginally Posted By jkirkon: Originally Posted By Odinforever2000: Originally Posted By jkirkon: Port is about 11.5” from the breech end of the barrel, which roughly put the gas port 8.5-9” from the chamber. https://www.ar15.com/media/mediaFiles/284805/IMG_0167_jpeg-3293716.JPG So..similar to the other bullpups..Interesting I re-read what I wrote, and it didn’t sound right…let’s try it again: The gas port in the factory AUG .300BLK barrel is approximately 11.5” from the breech end. Given the length of a .300BLK case is about 1.75”, the gas port is about 9.75” from the case mouth and beginning of the rifling. Does that make more sense? Look at it this way, the AR-15 for which the .300 Whisper was designed, uses a pistol length gas tube for most applications which is a full 3" shorter than a carbine length gas tube. |
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OR, USA
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Posted: 8/14/2024 10:14:57 AM EDT
[#39]
Quote HistoryOriginally Posted By SpyHawk: Look at it this way, the AR-15 for which the .300 Whisper was designed, uses a pistol length gas tube for most applications which is a full 3" shorter than a carbine length gas tube. Thats one way to look at it.. But its clearly not the only way and I think thats what gets folks jamed up. Especially with 300blk Bullpups. |
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Posted: 9/7/2024 3:23:25 PM EDT
[#40]
Shot the AUG today, suppressed, using both supers and subs.
Boringly reliable, pretty quiet with subs. Gets dirty as hell. The can knocked down the volume quite a bit shooting supers, but not quite enough to be hearing safe. I’ll clean it later and show how nasty the gas piston gets. |
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Posted: 9/7/2024 4:44:15 PM EDT
[#41]
.300 BLK piston/gas plug after approx 100 rounds today. Mostly subsonic.
Suppressor + subsonics get dirty quick. I had to tap on the gas block with a teflon mallet to loosen the gas plug and piston up enough to get them out.  Attached File Attached FileAfter a few minutes in the sonic cleaner, it’s nice and clean again.  Attached File |
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TX, USA
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Posted: 9/11/2024 10:14:03 PM EDT
[#42]
Nice! What kind of can and ammos were you using? How does the volume using subs and the can compared on the aug vs a shorty ar15? I was curious if the 300blk gas blocks still vent gas and thus cause lots of piston pop like suppressed 556 augs. Thanks for the range report!
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Posted: 9/12/2024 1:32:45 PM EDT
[#43]
Can is a Resilient Jolene S, and I’m using a Xeno HUB adapter, with Xeno flash hider.
Ammo was Barnes 120gr SuperSonics, and WW 220gr subsonic. It does have a little port pop because of the gas block, but it’s not much. You have maximum gas going to the piston when you are on the ‘subsonic suppressed’ position. I have only tried the AUG with suppressor at an indoor range, but I am pleased with the sound level. |
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