A specific whitetail addendum to my list: Have taken whitetails with all the cartridges on your list except the 8mm RM and .44 Magnum--though instead of those have used the .338 Winchester Magnum and .45 "Long" Colt. My few muzzleloader whitetails have all been taken with .50 caliber.
In addition have taken whitetails with the .257 Roberts, .257 Roberts Ackley Improved, 6.5x57R, 7mm-08, 7x57, 7mm SAUM, .300 Savage, .300 H&H, .35 Remington and 20- and 12-gauge slug guns.
Probably have taken more whitetails with the .270 than any other cartridge, somewhere in the dozens, but have taken almost as many with the .243. Have also taken the majority of my whitetails here in Montana, but have been lucky enough to get a few in several other states, a couple of Canadian provinces, and the state of Sonora in Old Mexico.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
