PERFECTLY SAFE !!!
from Buffalo Bores web site:
All .45-70 Magnum loadings are intended for use in the following firearms:
All Marlin Model 1895 variations made since 1972
Browning Model 1885 and 1886
New England Arms Handi-Rifle
Ruger #1 and #3
T/C Encore
Shiloh, Christian and Pedersoli Sharps
New Production Winchester 1886