I have reloaded for 50 yrs and have always been able to develop accurate load for center fire rifles. I have met my match in a Pedersoli 1874 Sharps. Kelley Soule rear ,hooded front with aperture inserts and level. Groups best at 3 in. 538 gr cast,500 gr cast 405 gr jacketed. Varget, 4198,5744. Sand bag and bunny ears.
i am not the shot i once was but still do well with aperture sights on 03 Springfield and 94 Winchester as well as scopes.
Gotta be loads or rifle . Bought the Pedersoli after reading about barrel quality so that leaves bullets or powder. Everyone says 5744 is the way to go for 45/70. That leaves bullets. Any help appreciated.