Back to my original question................This is a Navy Arms Remington Rolling Block. I can find no markings stating black powder only or black powder recommended.
"45-70 w/5744 & 480gr boolit I have some cast 480gr (NOE) boolits for my 45-70. I want a mild recoiling load for my Rolling Block. Accurate lists a minimum load for a 460gr boolit of 27.5gr and a 500gr boolit minimum of 25.2gr. My question-has anyone gone lower and what were your results? I have used 25.0gr with my 350gr boolits and with my 405gr. boolits.
Thanks for your input."
PJ