Re: 300wm Suppressor
Let me see if I can help to clarify some questions...
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Would a 300winmag rated suppressor do anything for my 6.5x47</div></div>
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.
To answer your question: If you shot your 6.5x47 with a .338 can, it'll be big but sound really good.
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body"> I am most concerned about POI shift over db reduction. My 300wm is a tack driver and I would hate to lose accuracy when shooting with the can on.</div></div>
The whole point of the 30P-1 and 30BA, and our product line in general, is to maintain accuracy and repeatability. That means that when the suppressor is screwed on, the groups should stay the same size or get smaller and the POI will be the same every time (to the limit of your rifle and loads obviously). Accuracy (group size) is different from POI. POI shift suppressor off to on is mainly a function of suppressor weight, barrel stiffness, and any harmonics that the rifle has during the shot and how adding mass to the muzzle changes the barrel position during the shot.
In most cases, our cans have about 3 clicks or less POI change from unsuppressed to suppressed. Many guys have 0, many have 1 or 2, maybe 3. A few have more than that. In some gas guns where a lot more stuff is moving, the POI shift is sometimes "up" instead of "down", due to the dynamics of the rifle. If you need to shoot without the suppressor, just check your logbook for the "off" vs. "on" correction and apply that to your data. For example, when I shot an F-class match some time ago, I just subtracted 3 clicks from my data and went from there. Since it's a "zero shift", you just subtract (add) a constant from all your elevation data values.
Cleaning is not really required on centerfire suppressors. If you want to clean it, you can use an ultrasonic cleaner or peroxide to dissolve the carbon. We also offer a free cleaning at our shop once a year if you cover the shipping. But to put it in perspective, we almost never clean our own suppressors.. I haven't ever cleaned my own 30P-1.
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Why would I want to step up to the 338 sized can for use on a 300winmag? My bolt rifles include a few 300winmags, a 30.06, a 6.5x47, a 270, and a 308. </div></div>
In your application, I would definitely recommend the 30P-1 or 30BA. There's no need to step up to the .338 can for .300WM and the .30 cal can will be a better fit for those rifles.
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
