Suppressing a Vepr 7.62x54r

[Flyboy73]

Just ordered a Vepr 7.62x54R from AimSurplus. Found out they come with a threaded barrel. Thinking about suppressing it with my AAC 762SDN. I see that they sell a 14x1lh to 5/8x24 adapter, so I could mount a AAC blackout flash hider on it.

Has anyone suppressed a Vepr 7.62x54r? Ran a AAC 762SDN on it? Just wondering if the threaded barrel is concentric.

Thanks

Brion

 

[redbullitt]

I imagine it would suppress similar to the 308 or 30 06 we are all pretty used to suppressing, and as long as the rifle runs okay you should be good I would think. I do not have any personal experience with your rifle..

But FWIW you may have to be ready to do some tinkering to get everything how you want it. My AR10 HATED being suppressed until I got the adj gas block on there. No amount to load tinkering helped, but I have had others where a little charge adjustment was all that was needed.

I would be concerned with the threading to be honest... Probably prudent to get it checked out and re done as needed. I have seen plenty of rifles with goofy factory threading. Just not something I would like to risk.

 

[Girodin]

I would be very concerned about it being threaded cocentric. I would have someone reputable check that out prior to firing a shot. There's a good chance you will need to have it re-threaded. AKs don't suppress particularly well so it may or may not be worth the expense and effort.

 

[Ian83]

The reason most AK's won't suppress well is the loose tolerances. The sound of the bolt clacking back and forth drowns out the noise of the rounds popping off, so you just wind up suppressing a noise you couldn't really hear anyway... In the case of your Vepr, the 7.62x54 round is MUCH more powerful than the 7.62x39 that an AK fires. It's the sonic crack produced by the bullet itself displacing the air in flight that will be impossible to suppress. Your barrel threads were probably intended for a flash suppressor. That being said, there are still advantages to a sound suppressor. It would reduce recoil and muzzle climb and improve accuracy, as well as make it near impossible to tell what direction the shot is coming from. Please take my advice with a grain of salt, as I have only been SHOT AT by Kalashnikov rifles, never actually shot one.

 

[bikemutt]

I suppressed a AR15 7.62x39 upper for a while, sounds good in theory, quieter in practice, but the carbon build up on the barrel crown was extraordinary. I still think it can be done, and I may try it again.

The rifle went from being MOA to HUH? shortly after I suppressed it. Once I figured out the carbon build up issue it went back to being MOA.

I apologize if the 7.62x54R is sufficiently different from the 7.62x39 in terms of "dirt".

In any event, I just bought a Vepr in 7.62x.39 and don't plan on suppressing it.

 

[hso]

The sound of the bolt clacking back and forth drowns out the noise of the rounds popping off

 

[Crawfish1]

IMO ,


Gasses escaping from the piston would be louder than the bolt cycling. Maybe a 7.62x54 reloaded with Trail Boss?

Cycle by hand nice and quiet.

Bolt action style shooting with a 15 round mag.

 

[redbullitt]

I would assume whisper quiet is not the goal here yes? Were I in the ops shoes I would probably be looking for something to take the edge off of the shot. Were I looking for silent I would choose another caliber and type of rifle.

Example. I hunt with a 308. Full power load, 178 AMAX at 2500FPS out of a 16 inch barrel. I ALWAYS run the suppressor. Its not silent lol, but it will not ring my ears if I happen to fire without ear protection on... No suppressor and the same situation equals a bad day lol.

Again, the AR10 is not silent, but it will not ring your ears. Sure you get the action noise and super sonic crack, but you don't get your bell rung by the muzzle blast. BIG difference and IMHO very worth it. All that said, I have never suppressed an AK style rifle, but have had good luck on bolt, lever, break action, DI and piston Ar style rifles.

 

[Flyboy73]

I would assume whisper quiet is not the goal here yes?

I already have a 300 blackout rifle for super quiet. Just would like to be able to use my SDN762 on another rifle. If the Vepr's are coming with threads that are not concentric, no sense in getting a adapter and flash hider.

Brion

 

[Theohazard]

The reason most AK's won't suppress well is the loose tolerances.

No, the reason AKs won't suppress well is because the threads often aren't concentric and the gas piston vents a lot of gas (even more when suppressed). So even if the threads are perfectly aligned, an AK's gas system makes it louder than most other suppressed rifles.

The sound of the bolt clacking back and forth drowns out the noise of the rounds popping off, so you just wind up suppressing a noise you couldn't really hear anyway.

No, the sound of the round popping off -- even with the quietest silencer on the market -- is still louder than the bolt clacking back and forth. Yes, the bolt on an AK is loud, but it isn't that much louder than the bolts on other autoloading rifles. And it's definitely not louder than 135 decibels, which is how loud it would need to be in order to be louder than the sound of the suppressed gunshot.

That being said, there are still advantages to a sound suppressor. It would reduce recoil and muzzle climb

That's true, but a good muzzle brake will cut recoil and muzzle climb more than most silencers will. One of my ARs has a muzzle brake on it, and attaching a silencer actually increases the muzzle climb and felt recoil.

improve accuracy

Sometimes a silencer improves accuracy, and sometimes it doesn't. And sometimes it makes the rifle less accurate.