Re: best .300wm supressor?
I bought the subscription to silencerresearch or whatever it's called. It was very informative.
I wanted a QD .30 caliber can that I could use on .308 bolt guns, AR10 platform, and maybe a .300WM.
I already have 3 AAC cans, so I am a little biased (M4-2000 Gen I - very old and very good, Phantom - freaking awesome, and Evo-9).
Anyway, when I looked at the combination of noise reduction, size, weight, cost, and warranty, the AAC 762SD was the clear choice for me.
Sure the Gemtech was a little quieter (especially first round pop), but it weighed like 12oz more than the AAC. That's a lot.
The Quicksilver cans are really quiet - but they should be because they're frickin' HUGE! He uses the same tube diameter for .50BMG, .338LM, and .300WM! If you used a tube diameter the same size as the muffler on your Jeep, it should be quiet!
I am entirely unfamiliar with Shark and SAS.
All things being equal (and they rarely are), YHM stuff is big heavy and loud - but cheap, Surefire is way overpriced for what you get, AWC is generally out-dated technology but is beefy and reliable, the SRT guy is kind of a nut (I have a couple of good stories about him) but makes a pretty nice can, etc.
So Gemtech and AAC are the real competitors in this product range, IMHO.
I called AAC a while back and asked about using the 762SD on .300WM. The guy said it did void the warranty, but that the military uses this can on their .300WM rifles. He said that they had a problem with some really high pressure ammo through a 20" barrel in .300WM that bulged the tube, but that I shouldn't have a problem with the 26" barrel on my PSS.