I have my main three components (stock, action, barrel) and I knew I wanted a big 30cal but wasn't sure what to do. I have a proof carbon 28" 1:9" barrel and gunwerks GRB LA magnum action.
The gun will be 85% big game hunting and the occasional target day
Currently debating between 30 sherman mag and 300 prc. Would like to shoot 230-245 class bullets.
Thanks gentlemen
just a couple of thoughts and questions.
how far are you going shoot? what is big game?
you can get a 30-378 weatherby and have the highest capacity, but it comes with a short barrel life, tons of recoil, and lots of extra component costs for the extra velocity.
were this my decision, I'd take a mainstream cartridge - 300wm, 30 nosler, 300 rum. many people here practice at long range, but will limit shots on game to 5-7 hundred yards. if that's your situation, the 215 Berger+300wm have a great track record. if you "need" to shoot the heavies, the 300 rum with the Wyatt's mag extension will have the needed capacity. just remember the added performance comes at a cost (compare the barrel life of a 308 win vs 300 wm).
I'd suggest finding a balance in the performance/cost ratio and be honest with yourself on how far you're going to actually shoot.
As a side note, the 33 cal hits much harder than the 30 (300 rum vs 338 edge) and enjoys longer barrel life.