Finally got around to getting out my old beat up 30 carbine blackhawk after reading about using 32-20 brass. Got some new WW 32-20 brass and trimmed it to fit and loaded up rounds with 8.5 gr 2400 and the 314008 plain base and gas check versions, some 311440 boolits and a 150gr plain base Lee GB boolit with 3 crimp grooves and a 135gr SWC gc. All sized .311". Thought it would be too big for the chamber mouth @.3085, but worked well. Didn't have my crony, so no velocities.
Only drawback was gun shoots about 5" high. First group with the 135 swc wasn't too great, about 2" @50 feet(I was shooting indoors). Rims kind of drug on the recoil shield as really needed to seat the SWC a bit deeper. Next tried the 150gr, but half of them went in the target sideways, in the 135gr swc group (top left). Shot the 150's again at the top right target, same result as the first. Then shot the 314008 pb at the bottom right target. Decent group. Next was the 314008 gc at the far left of the bottom left section of the target. Little better. Last group was was the 311440, which was just to the right of the 314008gc group. Not too shabby.
All in all, got a few decent groups, considering my aging eyes. Seems like pleasant loads, especially compared to 30 carbine ammo.