Dan, You best get to using that good WW 45-70 brass, 400 sticks of that would last both of us if we lived to be 200 at black powder pressure levels ; ] I was reading this awhile ago, but on the phone and couldn't type, that conversation led me to my load shop, while there I had a look in my Sharps Rifle load book, in my 50-90 with the big 750gr greaser that ran through 8 or 9 feet of Eland bull in Africa, I compress 120gr Old Eynsford 2FG a full .875 thou [with] a 30 thou Walters card wad on top, that load is one of the most accurate I have.
The only thing I've ever found in compressing the hell out of black powder is a 'good' pressured up, MUCH more clean burning load, have had no accuracy issues when compressing powder more than others on the web have stated, I mash on it when need be.
