For rifle use I powder coat for 25-20 and 308. I don't get the lint collection from my pockets like I do with the soft lubes and I can go higher velocity with softer alloys. I've been as high as 2400 fps with a 180 gr bullet in the 308 using an alloy under 3% antimony.. Normally between 2100-2250 fps with that bullet is my deer hunting load.
