So,when I usually resort to asking a question on one of my forums, it’s usually a doozy. Well, maybe not this one for someone running a similar setup.
So, I’m basically going to be using one of my suppressors on my Vepr. The rifle is the 23" barrel one in 7.62x54R. Suppressor is a Crux Nemesis338. Don’t feel comfortable running my 30BAS in that a 308 bullet is slightly smaller than a 7.52x54R in diameter plus you never know how congruent the treading is on my barrel.
My questing, do I need to worry about the increase in gas pressures and if so, what modifications to the rifle do I need to perform? I’d rather not spend the money on an adjustable gas block if I don’t need one. Rounds I will be using are 203gr. SP.
You need a Wolverine PBS-1. The biggest issue is the potential for non-concentric threads. This can is made with a slightly larger hole going through the baffles and is rated above 54r.
My 338 can is rated above 54R like you said. I could understand being iffy using a 30 cal. can because bullet diameter of 54R is slightly larger than that used in 308, 30-06, ect.
Wasn’t too worried about a baffle strike using my 338 can plus I was going to check things out real well once mounted.
I agree on the adjustable gas block. Lot of money though. I’ll probably end up seeing how she acts before purchasing one. Anyone out there with any experience regarding different springs or buffers?
Springs and buffers won’t do it for the AK. You need to reduce the force driving the carrier.
The main symptom you’ll see if the AK is way overgassed is bolt over base malfunctions. The carrier bounces off the rear of the receiver so hard that it outruns the magazine spring.
Even if the rifle functions without reducing the gas, you’ll still be overdriving it. Look out for the rear trunnion getting loose over time.
There I don’t agree. The AK’s reputation for being loud when suppressed comes entirely from being tremendously overgassed, with the accompanying obnoxious port pop you’d expect at the gas block.
Reduce the gas to just what’s necessary for function and the AK suppresses every bit as well as any other piston driven rifle.
FYI: I don’t want to suppress it for noise. It’s to eliminate muzzle flash when using NVGs and a IR laser. They also do well to reduce felt recoil though that’s not really a problem for me with that rifle.
If flash suppression is all you’re after, I’m not sure if going with a silencer is worth the trouble and cost. One of the better flash suppressors out there might work just as well, from the shooter’s perspective.
FWIW, we did some shooting at night with NVGs and this is what I remember: there seemed to be more flash with the can than with the nicer aftermarket flash hiders. This may or may not help though, because my memory was as an onlooker viewing from the shooter’s muzzle’s 9 o clock. visibly, without NVG, the flash was a long thin stream from the can and just a few forward and the occasional out-angled spark from the flash hider.
Wow, I never considered any flash coming from the can. I honestly have never shot one of my cans at night. Was pretty much the whole reason for suppressing my lwrc and the Vepr. Now, I do run a can on my Ruger Scout 308 for just the ear protection when hunting. I suppose I need to shoot a few rounds at night with my nvgs to see what I see.