I am in the final stages of building a 408 CheyTac and need some advice on starting loads. I will be using Retumbo and RL25 with Wolf Lg rifle Magnum primers, Jamison Brass and Lehigh 385gn pills.
The rifle is built with a Lawton 8000 barreled rcvr. McreesPrecision stock and a NightForce 5.5-22...