Late to the party but to the question of the "ultimate deer rifle"?, whatever you can hit the point of aim consistently at the maximum range you intend to shoot. The action, calibre (as long as legal) the optics etc do not matter. For me, the ultimate deer rifle is also just the ultimate HUNTING rifle (all big game) period. That would be my Ruger No1 in .338 with a 3X9 Burris compact scope. Have shot, moose, elk, deer, bears, sheep and have never lost an animal that I pulled the trigger on. I would suspect that my 1885 highway in .270 Gibbs with set trigger and Burris signature 3X9 would be just as good, just haven't shot any game with it. I like my .338 too much. BTW, I have no doubt that a 22-250 would smoke a deer with the right bullet and range (have one of those in a Ruger No1 Heavy barrel as well with 6X18 Burris scope) but not legal for deer in Alberta). Makes short work of Gophers out to......however far you can see them with hollow points.