zxcvbob
Member
Do you have any Unique? It is a top performer in .380. I use 4.2 grains with 95 grain cast bullets (this is a max load.) 3.9 or 4 grains should be near the top for a 100 grain bullet.
You mean a FEW TENTHS of a GRAIN!My load book lists 2.8 grains as the minimum load (750 fps) and 3.7 as the max (1000 fps) for those 100 grainers and W231.
Try bumping your charge up a few grains. I'd imagine factory rounds are probably between 900 and 1000 fps.