Would biggame powder be suitable for 243,30-30,765argentine, and the 8X57. I was gonna try some different powder. If so any loads for the above.

Big Game is next to Reloader 15 and close to VV 140/540 burn rate

Ramshot Hunter is slower and next Reloader 19 and close to 4831 burn rate.

I just started on a pound of Ramshot TAC for .308 but haven't shot it yet.

Ramshot powders are double based and spherical--meters nicely.

They have a pdf manual online. I can't paste it here.

I'll take a look.