Is there any reason to go threaded over QD?

I'm looking at getting my first .308 can. It will go on a bolt gun and I'll likely never use it on much of anything else.

While I'm at it, if anyone has .308 can suggestions, I'd like to hear them. It would be going on a 16" barrel.

16" is a short stick!  Maybe a SWR Omega 300?  Gonna be some pressure with a short barrel.

+1 I have a Gem-Tech Sandstorm on my .308 bolt gun.  I went tread on because I don't plan on using it on anything else and a thread mount is cheaper than a QD mount.

At what length is it not so much an issue? Would I still be good with a stainless steel can like the YHM 762 Phantom?

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Not really too much of a problem with pressure.  But a drop in accuracy compared to a 20" or 18".  The main goal I had when buying my suppressor- an AAC Cyclone- was suppression.  I bought the best thread on can dB wise.

Why would there be a drop in accuracy?

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16" have less time to stabilize the bullet compared to 20".  Plus on a 308- the powder has time to full burn.  A 16" would require some fast burning powder and a fast twist to have decent accuracy.

A 16" wouldn't seem inherently inaccurate with the proper combination of projectile, powder, and twist.  Maybe you can elaborate further with the details of your experience?

You would need to handload to get the maximum potential out of that rifle.

Are there are suppressor options that would allow me to hand thread a can onto the bolt gun, and still have a QD flash hider setup on an AR for the same suppressor?

I concur, the precision rifle forum is well populated with shooters using 16" bbls out to 1k.



 

Umm, I think you need to handload to get the max potential out of any rifle.  
My 16" 308 shoots sub moa with 168gr Federal GMM ammo and does even better with my handloads using varget (which isn't a fast burning powder).  
The ~150 fps that you give up going from a 22" barrel to a 16" is not going to keep a 168gr or even a 175gr bullet from stabilizing in a 1/11 twist barrel (arguably the most common 308 barrel twist).  About the only thing I agree with you on is that there is plenty of muzzle flash with a 16" barrel.



I have not seen any suppressor that allows you to do use both standard fine pitch threads and a QD mount.  

If you want a dual caliber, fairly inexpensive suppressor, I would just recommend getting the SS Phantom 308 QD with mounts for both the 308 and 556.  The phantom is rated for 300 mag and I have no doubt that if you called YHM, they would let you know it would function just fine on a 16" 308.

No precison issues with the SCAR-H SD on my bolt gun; in fact, it seems to shoot slightly tighter groups with the suppressor.

One item per each Form 1/4, other than 5320.20's.  Each Form 1/4 requires separate duplicate copies of all supporting documentation, including payment.  I prefer to send multiple submissions in separate envelopes, although this may or may not be required.

I had a C3 dealer suggest that the only major difference would be that the threaded version will come loose after some shooting. I know my .22LR can does, but it's not immediately, and not an issue.

Not for the same surpressor but you could have your bolt guns barrel threaded and get a .308 can from someone like aac or yhm and get a qd mount for your ar and a qd mount for the bolt gun and use that can on both guns.

The biggest reason (IMHO) to get a fast-attach suppressor is versatility to use the suppressor on various host weapons, possibly with different thread patterns.  For example, if a guy had a bolt-action (typically 5/8x24 thread), an FAL (9/16x24L) and an HK (15mm) he could pick a fast-attach suppressor with mounts in all those thread patterns and use the same suppressor on each host.



The other reason I have suggested fast-attach suppressors is high-cycle rate host weapons such as machine guns or even semi-auto hosts fired at a higher cycle rate.  With those host weapons a thread mounted suppressor can be more likely to work loose.  BUT, not all fast-attach systems stay tight enough on the host.  Some "fast-attach" systems are better than others.



For a guy wanting to put a suppressor on a bolt-action and pretty much nothing else, I'd recommend a thread-mount suppressor and have the barrel threaded to match the thread spec of the suppressor.  You also have some suppressors that are sort of hybrids, if you will.  Like an Ops Inc 12th Model.  It isn't really a "fast-attach" suppressor and it isn't just thread-mounted.  It uses a two-piece mount.  The read collar portion of the mount keeps the suppressor solid and in place.  This design requires more machining on the barrel to install the two part mount though.



On a bolt-action host some people think a thread-mount suppressor is more aesthetically pleasing.  Some folks don't want a mount left on the barrel when removing the suppressor.  It is a personal preference issue.



As already mentioned, 16" barrel hosts are not a problem.  A lot of people are finding shorter barrel bolt-action hosts very practical for certain applications.  Like anything they do have their place in certain situations.








Mark



 

Barrel length has nothing to do with accuracy. You loose velocity.

The ruff rule of thumb is you need about 18" to get full burn with a 308.

One can per form 4.

So far the only accurate statement you have made about short barrel 308s is that "sometimes" the powder does not have time to fully burn.

A 16" 308 barrel in a bolt gun:

Is just as accurate as a longer barrel and may even be more accurate with a can hanging off it.  There is less vibrationg and sometimes less POI shift on a shorter/heavy contour barrel.
Has no issues with stabilizing a bullet.  This is purely a factor of the twist and bullet bearing surface/design.
Doesn't need fast powders to be accurate.  Powder burn rates only has to do with the bullet weight and how much velocity the user is trying to acheive.  You can have slow accurate rounds.

Not sure where you are pulling your information from.

My guess is the errornet as Pat Rogers would say.  





Or gun shows.