4831 is way too slow to be useful with 100 grain bullets in the 260 Rem. I think it is too slow for 140s myself. I would be more inclined to try H414 than 4831. If I stuck with a rat turd powder, it would be Varget or 8208 or 4007.


NRA Benefactor Member

Those who live by the sword get shot by those who don't.