Continuing with this .50-70 project today I cut a bunch of patches using the Seth Cole 55Y paper. That paper for these long, narrow patches is a bit of a challenge for me. I'll have to refine that process some.
I have used 2F Goex a lot in this rifle in the past and I'll start there. Using Starline brass 79.0 grains fills the case to the top, so I set up to dump 78.0 grains which will allow seating a .060 wad.
Starting with .125" compression, which I knew would give me just a bit more length than the freebore would accept, I seated the first bullet and tested the OAL in the rifle, it was about .025" to long for easy chambering. I compressed to .150" which gave me a C.O.A.L. of 2.660" and that chambered about perfect.
The patched bullet is snug going into the freebore, such that it stays there if the unfired case is extracted. That's just the way I wanted it.
I'll load some like this and test and get some sight settings. Everything is going pretty smooth so far.
DT