BBoss,
It's always fun to try a new bullet, but sometimes some of the old stuff is hard to beat. I used to have a Ruger M77 in .280 Remington (wish I still had it) and used the tried and true 154 grn. Hornady S.P. (.284 of course) exclusively on elk, deer and antelope; a wonderful performer. It's been quite a number of years since I've had that rifle (traded it for a new Hoyt, Spectra 5000 compound bow back in '88), but I know I used IMR 4350 for the propellant, too. I had a work buddy that used that bullet in his 7MM mag, and swore by it. He was a dedicated bench-rest shooter and hunter who knew what he was talking about, and whenever he talked shooting or hunting, I listened. He thought the 154 grainer would work well in my .280, and he was right. It's a good, accurate hunting bullet, and as a bonus, at half the cost of the accubond lrs.