anyone have experience with this powder for 10mm? I use (and LOVE) Longshot for most 10mm loads, but I picked up some autocomp for .380. I have read that longshot isnt the best velocity wise for lighter bullets like 155gr and under. i know visual appearance can be very deceiving and more or less useless in identifying various powders, but AutoComp looks exactly like Longshot, only AC has slightly smaller grains. Wanna kill these ads? We can help!