Hey folks, I have always cast for modest velocity pistol and revolver plinking rounds, or similar levergun ammo, so I've never used anything besides 50/50 WW/Pb and it's always been fine for what I want. However, I want to start trying to develop a load for the 308 and I'd like to try to get to a decent velocity and accuracy, like mid 2k fps and close to MOA. The boolit is an NOE 310-165-FN-H3 gas check for the 30XCB. I'll be experimenting with powder coat and White Label Lubes' Carnauba Blue (not at the same time). Intended rifle is a Steyr Scout.
I've got lots of COWW, pure Pb, and lino. I've got a little bit of Sn solder. What's a good alloy for this application that will get me up to 2400-2500 fps with a gas check? Or is 50/50 powder coated good enough? I'd like to not use too much of my Sn or lino if I can avoid it because I can't easily get more.