Bro, I have shot a number of deer with that 280 gr WFNGC Beartooth Bullet and I'll tell you it is a great bullet. Very accurate, and excellent on game performance. The last deer I shot with it last year out of my SW .45 PC gun was about 65 yards and she dropped like a stone. The gun wears a 2X scope, 1" groups at 25yards are boring from a rest.
I'm at work so I can't remember the exact load for sure, but I'm 99% that it is 12.5 gr of AA#5; produces around 1,050 out of my 6" bbl.