Forgive me for posting here but because of the circumstance I feel you guys are the best to ask. I just bought a Muzzle-loader barrel that is .458, it is 32" long, and it is 1-18 twist. Because it is .458 and 1-18 twist I figure it is more like a BPCR than a regular 45.
I want to shoot 45-70 type bullets in this barrel. I would like the small end to be 400 gr and the big end to be about 550 gr. Do you guys have any Ideas for me. I am planning to use this barrel for target, deer, and Antelope. Thanks Ron