55-56 grains of RL - 15 seems to work quite well in 4 35 Whelens I have loaded for with std primer RP Whelen cases with
older production Speer 250 gr spitzer bullets. Velocity 2450-
2500 FPS.
My Rem 7600 prefers 56 Gr of IMR 4320 with 250 gr Speer. 2500 FPS
Loads are safe in my rifle may not be in yours so work up!
