Originally Posted by chesterwy
Anyone ever loaded this combo? I have an 18” barreled 308 that I’m trying to get set up for deer and elk. Shots out to 300 yards.


I've run the 220 gr. Sierra round nose at 2300 and change from a 22" barreled M70 in .308. Powder was W760, Winchester brass and WLR primer.

The source I have for a 200 gr. bullet shows: Barrel length unknown.

W760 Start: 44.0 gr./ 2244 FPS/ 42,400 C.U.P. Max: 45.0 gr./2381 FPS/47,000 CUP

W748 Start: 38.0 gr./ 2212 FPS/ 42,000 C.U.P. Max: 40.0 gr./2349 FPS/47,800 C.U.P.

You'd probably lose about 100 FPS due to your shorter barrel.

FWIW, the Max for the 220 gr. RN and W760 is 44.0 gr./ 2295FPS/ 46,900 C.U.P. I got 2320 FPS from a 22" barrel if that's any help.
Paul B.

Last edited by PJGunner; 11/28/20.
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