Re: What can you run through a 308 can?
Here is what Zak Smith with Thunder Beast Arms had to say just recently in another thread that I think will answer your question and then some.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Zak Smith</div><div class="ubbcode-body">
The .300WM "rating" on a .30 cal suppressor is there mainly for durability: will the suppressor "stand up to" the blast of the larger cartridge. In our 30P-1/30BA, they are very strong and will easily "withstand" even .300 RUM. Then there is the question of what the suppressor can effectively suppress. The 338P-1/338BA is larger to accommodate the additional volume of gas of the .338 cartridges such as .338 Lapua, Norma, RUM, etc. My rule of thumb for the 30P-1/30BA is that if you are shooting an up to .30 cal cartridge with no more than about 80 grains of powder, go with the 30P-1 or 30BA. It is cheaper and smaller and lighter than our .338 suppressors and will be a better "fit" to your smaller caliber rifles than the .338 cans.
If you wanted to shoot a lot of .300 RUM or something else with a lot of powder, our .338 suppressors will suppress better because you're burning a similar amount of it to the .338's.
It makes sense to economize how many suppressors we have to cover the rifles we shoot. I typically recommend the "90% rule", that is, optimize the suppressor you buy for how it will be used 90% of the time. If you'll only rarely (the "10%" of the time) use it on something else, you can take some compromises on that application. It's the 90% of the time you want it to be the best fit. What does this mean? For example, if you shoot 6.5mm and .308 almost all the time in practice and competition, but have a .300 RUM for hunting, then get the 30P-1 or 30BA. If you shoot a lot of .338 and .300WM, it makes sense to use the .338 can on both, and then maybe getting a .30cal suppressor for your 6.5's, etc.
As for our titanium suppressors on semi-auto-- there is no problem with it. Just keep the temperatures under control. If you keep the suppressor under 800 degrees F you'll be fine. Just remember that this was designed as a light weight precision suppressor, not something to take mag dump after mag dump. We have a lot of guys shooting the 30BA and 30P-1 on gas guns like the OBR, AR-10, but they are rifles built for accuracy and not volume of fire. My general rule is that if making hits is more important than volume of fire then our Ti cans will be fine. Just watch the temp. If you have a magnified optic on there, you'll almost certainly have your sight picture obscured by mirage before you get to this point.
To contrast, our "sporting/precision" 223P-1 weighs about 15 ounces. The full-auto rated one, the one you can shoot on a 7" F/A M16 all day (223A) is made of inconel and steel and weighs 23 ounces.
hope this helps...
Zak
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