I size all my bullets to .454 for all my Rugers and its a piece of cake in one step. I have yet to find a load that wont do at least 2 inches from 25 yards and most do better. It doesn't matter if it 9 hrains of unique for a very easy fun shooting load or 15.5 of 2400 that's another easy shootin load or 13-gr of hs-6 another easy shooting load all of these loads will do over 1000 and if you want rompin stompin loads that breathe fire and shake the ground and do 1250-1300+ well those group as well. I use range lead which is real close to wheel weights I let them air cool for a day then size them. I get no leading and I just have fun. I enjoy them so much I am selling some other molds so I can buy a custom brass mold that casts a very nice 340fn