For what you described just about any rifle will do. No magic bullet is required to kill a deer at that range. I've got a Remington 700 in 30-06 that will shoot MOA groups with 150 grain core-lokt PSP factory loads.They're $12.99 a box, will kill deer as good as any other round, and you can sight it in so that you won't have to worry about bullet drop. Heck, evena 30-30 with lever-revolution ammo would work just fine.