Re: 300 RUM brass
I've been using Remington brass in a stock Sendero with 96.5g of retumbo with 180 AB, that gets 3 shot averages at 3360-3370fps , .3-.4" 3 shot groups. The bolt gets sticky at 97g, at 96.5 I get slight ejector marks but it shoots great. I aneal every 2 firings, the primer...