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11/20/2024 5:44:55 PM EDT
So, I just e-filed a form 4 for a YHM R9 for my PCC’s and as a bonus the R9 does a wide variety of center fire rifle calibers. I’m considering enlisting it on my American Ranch 7.62x39. Has anyone tried subsonic ammo in their rifle and if so, which rounds did you have success with ? I believe the twist rate is 1-9.5” and I’m wondering if it will stabilize bullets in the 180-250 range.

TIA
11/20/2024 7:06:07 PM EDT
[#1]
I’ve shot some Brown Bear 196 grain subsonic through my Ruger American Ranch. They were plenty accurate and hit within a few inches of the 123gr ammo I was shooting at the time at 100 yards. They were very quiet through a can.
12/3/2024 7:07:36 PM EDT
[#2]
I don't have a RAR in 7.62x39, but I do have a Bear Creek AR upper in 7.62x39 that allegedly has a 1:10 twist and it shoots the Hornady Sub-X 255 gr just fine.
12/17/2024 3:33:15 PM EDT
[#3]
I have 2 gen 1 RAR’s in x39.  

Both shoot the brown bear into the same hole at 50 yards and all rounds stay subsonic. I have shot the Hornady subx, and it is very accurate, but about 1 in 3 rounds went super for me, which is very annoying…
Some will die in hot pursuit in fiery auto crashes.
Some will die in hot pursuit while sifting through my ashes.
Some will fall in love with life and drink it from a fountain, that's pouring like an avalanche coming down the mountain.

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