Hornady Making Sub-Sonic 7.62x39R

[RackinRay]

Just stumbled across this and had not heard of it.

Hornady Subsonic 7.62×39 Ammunition Launches 255-grain Bullet, Quietly!

https://vimeo.com/763809663 Hornady just announced the release of a very interesting new load, one we think hunters will jump all over.

www.ballisticmag.com

 

[boondoggle]

I saw that too. I was actually thinking of putting together a 300 blk pistol for subs and ran across it. My question is twist rate requirement? If I recall correctly many of the AK, SKS, etc. barrels were some kind of a 9.45 or 9.55 twist but my AR style builds are all 1-10". I would be curious as to how a too slow a twist rate could impact a suppressor?

 

[.22 cents]

that would be awesome for x39 suppressed bolt action rifles

 

[RackinRay]

I saw that too. I was actually thinking of putting together a 300 blk pistol for subs and ran across it. My question is twist rate requirement? If I recall correctly many of the AK, SKS, etc. barrels were some kind of a 9.45 or 9.55 twist but my AR style builds are all 1-10". I would be curious as to how a too slow a twist rate could impact a suppressor?

I do not see how twist rate in a barrel would affect any suppressor. I would be more interested, if I was still into 7.62x39R, in what bullet diameter they are loading. I did not look at the article enough to see if it mentioned the bullet diameter.

 

[Rebel_Rider1969]

Here... sometimes subsonic, sometimes not...

 

[boondoggle]

Have the same rifle. Shoots the cheap steel cased ammo good and a hand load with the 123SST really good.

Haven't shot subs through it yet as I've been exhaustedly waiting at this point for suppressors to be a non-NFA item (a guy can still dream). But, I'm just going to have to suck it up and get one with form1 and $200.

 

[Snake-Eyes]

I do not see how twist rate in a barrel would affect any suppressor. I would be more interested, if I was still into 7.62x39R, in what bullet diameter they are loading. I did not look at the article enough to see if it mentioned the bullet diameter.

If the twist won’t stabilize the projectile, it will exit wobbly or even tumbling. While that just sucks for accuracy and terminal performance anyway, it will cause a baffle strike through the tighter tolerances of a suppressor.

ALWAYS “paper-test” ammo without the suppressor first. Check for keyhole impacts, etc.

I remember a batch of S&B factory subsonic .308 that keyholed every round from one particular rifle. Sucked because it was a threaded bolt action, so no suppressor goodness for that rifle/ammo combo.

Gotta love subsonic ammo, though. Smile-generators with a suppressor...

 

[Krazy1]

If the twist won’t stabilize the projectile, it will exit wobbly or even tumbling. While that just sucks for accuracy and terminal performance anyway, it will cause a baffle strike through the tighter tolerances of a suppressor.

ALWAYS “paper-test” ammo without the suppressor first. Check for keyhole impacts, etc.

I remember a batch of S&B factory subsonic .308 that keyholed every round from one particular rifle. Sucked because it was a threaded bolt action, so no suppressor goodness for that rifle/ammo combo.

Gotta love subsonic ammo, though. Smile-generators with a suppressor...

I dealt with this exact problem with some .308 ammo. It would be cool to quite an AK. I finally got my 22 Sparrow suppressor. I have found the Hornady ammo is far better than other subsonic.