Anybody else reload B.P. cartridges? Getting a 45-90 Sharps rifle, it will do smokeless but I'm going to go the B.P. route. The fist thing I've learned is it's volumn not weight That will take some getting use to since I try to keep my smokeless to within a 1/4 grain.

I don't know about .45-90, but I've loaded black powder in .45 Colt. What I was told...and what I've always done, is fill the case to the rim and then seat the bullet, compressing the powder. And I was also told what you don't want is a short load. I've shot loads like that in a reproduction peacemaker with no problems. I just don't do it much. Too much time and effort to clean after that. You have to take the whole pistol apart.