Been playing with a few lighter weight boolits in the 45-70. NOE copy of the 457191 has a large meplat for slapping down the deer and hogs and shoots very well out of my #1 @100yds. I have a 330gr from Arsenal that shoots as well, but smaller meplat and a 300 gr Ranchdog plain base that is about 315gr and also shoots well in my Ruger. I load the same load with all three boolits, the same load JDL posts above, using Unique. Really smacks our 100yd gongs.