Just got some 215 and going to start load development with ADG brass and Retumbo powder I’ve been shooting the 212 eldx with 91.0 gr of Retumbo with great results I have a custom 300 rum with a carbon six barrel where would a good place to start for this setup . the 212 we’re running 3118 fps...
I’m wanting to build a rifle 300 rum with a defiance action and Proof research barrel….starting out on building a rifle never built one before what action and barrel combo should I go with I’m a hand loader so I don’t want a Sami spec throat in the rifle I’m wanting to shoot the Berger 230 and...