Never tried 760 so I can't help you there, sorry. I'd stick with a "medium burn rate" powder like RE-15, varget, IMR 4064, IMR 4895, and remember they suggest a middle of the road charge for these things for reliability and safety. You still want it to operate flawlessly (use enough powder) and also not blow your extractor off or worse (mine actually cracked, luckily I found it in time for it so it didn't create a problem
). Also thing to remember when reloading for the Win model 100: If your neck tension is good you don't need to crimp, full length size (or atleast .004" shoulder set-back), and primers a few thousandths inset for no slamfires. I'm sure you know this already, but for the guys who are thinking about loading for the semi-auto rifles in general.
