I load for three centerfire rifle cartridges(243, 280, and 30-06). I am looking at possibly using one powder for all three. "Dave in WV" is my Dad and he reports great accuracy with H4350 in his 243 and 30-06. I will be shooting 140-150gr. bullets in 280 and was wondering if anyone has used this powder in 280. I currently use IMR 4831 and it works great but like I said, I'm interested in using one powder in all three. Thanks for your replies.