I was reading a little on the forum about the different rifles you reccomend and Lyman is a good rifle and the .54 is a good caliber for everything except grizz. BUT the Lyman Great Plains Hunter is 1 in 32" twist and lyman makes a 425 grain minnieball mould. Wouldnt that combination stop a grizz? I guess this is just a general question but a 425 grain bullet at 1200 Fps would seem like a very potent projectile especially out of a .54. I was just wondering what you guys thought, I might be getting a Lyman GPH pretty soon so that I had a conical gun to hunt with.