Well I loaded a few rds. for my new 45 70 barrel,and the higher I went with the IMR 4198 the better it shot.I was using the Hornady 300 gr. hollowpoint and at the max load in my books,it shot .637"at 100 yds.I only shot 1 group with this load,and headed out to hunt some hogs with it.This barrel really shows some promise. Digger