I use the Toolcraft high pressure dual ejector bolt in both 6.5 CM and 308 it has an .062" firing pin, vs the .075," they work great. I like the small firing pin dia. as the preferred option, the dual ejectors come with it. They are not designed to push the limits...but I do anyway, so if they offer any extra assurance that's fine.
Do not do what I do...most of my loads are in the +p category, but they work in my rifles...not necessarily yours, and you mudt be an experienced handloader.
I Run these as at 68,000 psi according to QL in AR 10 ...16" 308...shooting 208 eldm at 2442 fps Ave. 155 gr 2850 fps, 168 eldm 2755 fps. from the 6 lb 3 oz AR 10 with some .5" and less 5 shot groups...the AR 10 is 7 lbs 12 oz complete with a Leupold Mark 4 3-10X. 1200 yd capable with a light AR 10. And you can use cheap LC brass to achieve this. It has a magnesium upper, titanium bolt carrier, ti muzzle brake, 15.5" carbon fiber hand guard, and No it's not inaccurate pencil barrel, but a fluted SS WC barrel 11.25 twist.
A delight to carry and handle lighter than most of my AR 15s...and accurate, just dial & smile set up.