I cast my own for my 45 Colts. I'd go a little more on the WW for hogs than what you're proposing. A couple years ago, I shot two 50 / 60 pound pigs close up with pure lead from my carbine and didn't get an exit on either side shot, both less than 30 yards. All I did on both one push a parachute through hide amd tissue. Needless to say, they both donated themselves to the dinner table. A 50/50 mix of Pb/WW seems to work good in the carbine wiht the extra umph. A straight WW is not a bad decision either, it has never failed to make an inney and outey on any hog or deer I've I've ever shot, pistol or carbine. A 0.452 bullet starts out alerady expanded to what a 30 caliber wants to acheive. Bullet for the Black Hawk and Trapper is a Lee 255 grain RNFP. Good luck.