Compression and Olde Eynsford

[Kurt]

I'm just starting to shoot the .45-70. I have two trapdoors a high wall and a Sharps. I never shot to much till just lately. I been working up loads for the sharps. One is with a PP and the other is for a 121 PH. Working up ladder loads from zero to .400" compression using 1.5, 2 and 3F OE, all three granulations like .120" to just under .260". The best load using OE is a 67 gr of 3F OE using the 121 PH Lyman bullet. That load is TIGHT @ 200.
The PP prolate with no lube wad just a .038" plastic wad and 73 gr of 3F OE.
Between .180" and .250" compression is pretty much average from the .40-70 to the .50-90 in 1.5 to 3F OE.

Kurt