When I used the 45-70 in my old Shiloh, before I sold it, my pet load was Federal cases, Federal 215 primers, 62 grs. of GOEX ctg., now it would be Scheutzen or KIK Ffg, .020 card wad and either the Lyman 457125 or RCBS 500-BP cast 25-1. The round nose Lyman was good out to 400 and the RCBS took me the rest of the way to at least 800.