LD;
I shoot 2 .45s and 2 .50s in the REALs, I just use ww's + 1% Tin.
The bullets are tapered, the bottom band is the smallest and the top band is the largest, 3 steps on the lighter ones and 4 steps on the heavier.
I have no problems loading them, even after several shots, but I use 777 , not BP.
Don