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Posted: 8/12/2015 6:38:26 PM EDT
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I've always had the impression that foreign SS109 loads were more accurate than the US M855 version. I finally decided to test this out to see if it held true (for my rifle). The first test will be with ADI F1, GGG (Lithuanian) and IMI M855 (2009) I will be using Molon's format (for the most part) with 10 round groups and no called fliers The Gun Steyr AUG-A1 20" barrel; 1:9 twist 1.5x optic front sandbag rest  Control Load ADI 69gr SMK  ADI F1 The Groups: 2.124" ES/0.776" mean radius 2.714" ES/0.764" mean radius 2.843" ES/0.679" mean radius -------- Avg Group ES: 2.560" Avg Mean Radius: 0.740" Best group (MR):  GGG (Lithuania) The Groups: 2.607" ES/0.703" Mean Radius (I absolutely flubbed 2 shots that would have halved the group) 1.881" ES/0.758" Mean Radius 2.277" ES/0.646" Mean Radius ----------- Avg Group ES: 2.255" Avg Mean Radius: 0.702" Best Group (MR):  IMI M855 (2009) The Groups: 3.782" ES/1.102" Mean Radius 4.080" ES/1.089" Mean Radius 3.496" ES/1.038" Mean Radius --------------- Avg Group ES: 3.786" Avg Mean Radius: 1.076" Best Group (MR)  The take home for me is that Israel hates Austria  Hertenberger SS109 The Groups: 2.098" ES/0.751" Mean Radius 2.471" ES/0.741" Mean Radius -------- Avg Group ES: 2.2845" Avg Mean Radius: 0.746" Best Group (MR):  |
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It's about who is behind the trigger Quoted:
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I just impressed the AUG was able to do 1.3 MOA 10 shot group with any ammo, with a 1.5X scope and an AUG trigger. I'm also surprised the IMI was your worst shooting. My own experience has been the opposite. It's about who is behind the trigger And finding an ammo your rifle and barrel like ! Mcantu, try some Fed. Tipped Varmint 50gr for inexpensive accuracy. Just over 1 MOA in all my rifles... http://palmettostatearmory.com/index.php/catalog/product/view/id/4550/category/47/ |
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Quoted: I just impressed the AUG was able to do 1.3 MOA 10 shot group with any ammo, with a 1.5X scope and an AUG trigger. I'm also surprised the IMI was your worst shooting. My own experience has been the opposite. i still feel like all the groups can be tightened up. i need to work on getting a rear sandbag to keep the stock from moving so much and i'm limited by the old school 1.5x optic and donut of death reticle, which isn't made for precision shooting....  |
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And finding an ammo your rifle and barrel like ! Mcantu, try some Fed. Tipped Varmint 50gr for inexpensive accuracy. Just over 1 MOA in all my rifles... http://palmettostatearmory.com/index.php/catalog/product/view/id/4550/category/47/ Quoted:
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I just impressed the AUG was able to do 1.3 MOA 10 shot group with any ammo, with a 1.5X scope and an AUG trigger. I'm also surprised the IMI was your worst shooting. My own experience has been the opposite. It's about who is behind the trigger And finding an ammo your rifle and barrel like ! Mcantu, try some Fed. Tipped Varmint 50gr for inexpensive accuracy. Just over 1 MOA in all my rifles... http://palmettostatearmory.com/index.php/catalog/product/view/id/4550/category/47/ Good ammo and good price. Though they have been creeping it up, a couple weeks ago I picked up a bunch from them at $5.79. Now it's 5.99. Also, be aware it's shit FC brass. I had incipient case separation rings show up on 4 out of 20 I fired. It's fine for first firing, I have no worries there. But if you're hoping this is a source of good reloading brass, it's not! http://www.ar15.com/forums/t_6_42/449440_Federal__223_brass___still_junk___American_Eagle_50gr_ballistic_tipped_varmint.html |
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Just to add another account on the ADI F1...
There was some concern of the F1 load being underpowered in the AR system. I didn't find that to be the case with my BCM midlength. I shot a few hundred rounds without issue. I didn't shoot any groups, but using an EOTech I was able to hit a 6" gong at 200 with boring consistency. The only misses were pulled/called fliers. Taking the steel out to 300 took the hit rate down to 50%. Standard free-floated BCM barrel Posted Via AR15.Com Mobile |
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Quoted: Just to add another account on the ADI F1... There was some concern of the F1 load being underpowered in the AR system. I didn't find that to be the case with my BCM midlength. I shot a few hundred rounds without issue. I didn't shoot any groups, but using an EOTech I was able to hit a 6" gong at 200 with boring consistency. The only misses were pulled/called fliers. Taking the steel out to 300 took the hit rate down to 50%. Standard free-floated BCM barrel Posted Via AR15.Com Mobile yeah, ADI F1 is definitely in the top tier of SS109 loads. the F1A1 changes were less temperature sensitive powder (the same whats in their Outback branded loads), a slightly higher chamber pressure and improved accuracy |
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Just to add another account on the ADI F1... There was some concern of the F1 load being underpowered in the AR system. I didn't find that to be the case with my BCM midlength. I shot a few hundred rounds without issue. I didn't shoot any groups, but using an EOTech I was able to hit a 6" gong at 200 with boring consistency. The only misses were pulled/called fliers. Taking the steel out to 300 took the hit rate down to 50%. Standard free-floated BCM barrel Posted Via AR15.Com Mobile Where did the "some concern" come from? I hadn't heard any of it - though I wasn't looking for that sort of info anyway. |
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Where did the "some concern" come from? I hadn't heard any of it - though I wasn't looking for that sort of info anyway. Quoted:
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Just to add another account on the ADI F1... There was some concern of the F1 load being underpowered in the AR system. I didn't find that to be the case with my BCM midlength. I shot a few hundred rounds without issue. I didn't shoot any groups, but using an EOTech I was able to hit a 6" gong at 200 with boring consistency. The only misses were pulled/called fliers. Taking the steel out to 300 took the hit rate down to 50%. Standard free-floated BCM barrel Where did the "some concern" come from? I hadn't heard any of it - though I wasn't looking for that sort of info anyway. According to manufacturer the F1A1 load had an increased chamber pressure to cycle reliably in M4 and M16 gas systems as well as the Aussie AUGs(which the F1 was intended for). Many took this to mean that the older F1 load wouldn't work reliably in those systems. A few people here returned or sold their cases of F1 based on that assumption. This was a year or so ago when mixed lots of F1 and F1A1 were available from BulkAmmo for $250/900rds. Posted Via AR15.Com Mobile |
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Quoted: According to manufacturer the F1A1 load had an increased chamber pressure to cycle reliably in M4 and M16 gas systems as well as the Aussie AUGs(which the F1 was intended for). Many took this to mean that the older F1 load wouldn't work reliably in those systems. A few people here returned or sold their cases of F1 based on that assumption. This was a year or so ago when mixed lots of F1 and F1A1 were available from BulkAmmo for $250/900rds. Posted Via AR15.Com Mobile Quoted: Quoted: Quoted: Just to add another account on the ADI F1... There was some concern of the F1 load being underpowered in the AR system. I didn't find that to be the case with my BCM midlength. I shot a few hundred rounds without issue. I didn't shoot any groups, but using an EOTech I was able to hit a 6" gong at 200 with boring consistency. The only misses were pulled/called fliers. Taking the steel out to 300 took the hit rate down to 50%. Standard free-floated BCM barrel Where did the "some concern" come from? I hadn't heard any of it - though I wasn't looking for that sort of info anyway. According to manufacturer the F1A1 load had an increased chamber pressure to cycle reliably in M4 and M16 gas systems as well as the Aussie AUGs(which the F1 was intended for). Many took this to mean that the older F1 load wouldn't work reliably in those systems. A few people here returned or sold their cases of F1 based on that assumption. This was a year or so ago when mixed lots of F1 and F1A1 were available from BulkAmmo for $250/900rds. Posted Via AR15.Com Mobile even though BulkAmmo was using pics of F1A1, i'm pretty sure all of the ammo they had was F1. when called on it, they just photoshopped the "A1" off of the ammo can label. real F1A1 has a green tip. |
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I tested some IMI years ago and found it barely minute of Palestinian. 
I may have to buy some more and retest. Quoted:
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I'm also surprised the IMI was your worst shooting. My own experience has been the opposite. I tested some IMI years ago and found it barely minute of Palestinian.
I may have to buy some more and retest. Some barrels "like" some loads and "hate" others. It could be just a matter of this situation with the ammo and your barrel. |
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