wc 846 powder data w chrono results.

[ctrmass]

Barrel: 20" 1/9 3 gr poly BHW
case: Hornady
powder: WC846 surplus
weight: 29-29.1 gr
primer: CCI
Bullet: 120 gr sierra BTHP
velocity: 2452 fps
ES: 43
SD: 12

Great accuracy out of my rifle. I believe there's a little room of more velocity, but I dont want to beat up my gun and besides, I dont get much range time, I'd rather shoot than experiment.

FWIW the same load chronographed 2412 FPS out of a 18" BHW barrel.
Everything is identical except the 2" on the end of the barrel.

[oxn316]

i had good luck with it in a ppu case. 28.6 grains with a 123 smk. in my 24" tube i was getting 2620. It was a tad warm in the summer but spring and fall it was a .5" load.