I'm loading the 2 1/2 RST hull in everything. Your powder charge for a 7/8 oz load is higher than what I'm using for a 1oz load. I'm using 20.5gr of SR7625 with a Win 209 primer. Velocity is 1150FPS and pressure is 7400PSI. I think the hottest shotsheel primer is the Federal. Win, Rem and Cheddite 209 are all pretty equal. I have never used a CCI shotshell primer.
I like the cherrio as a filler if needed. It crushes easily and doesn't adversly effect anything.
|