Re: What bullets for big deer out to 500 yards?
Hard to beat Reloader 22 and a good 160 - 168 gr bullet from the 7mm Rem mag. Typically velocity will be 3000 - 3100 fps with excellent accuracy.
A big mule deer isn't all that tough to kill with a well placed shot, so I'd concentrate on using the bullet with the greatest accuracy. A 160 Sierra SPBT Gameking, 160 Nosler Accubond, 168 Berger VLD. I'd start with those.
My little old .25-06 with a 115 gr Berger VLD dumped a Wyoming mulie at 400 yards, one shot, instant drop. Your 7mm mag is bigger & more powerful, should have no problem whatsoever with a good hit.