Looking to get the wife her first rifle as she wanting to get involved in hunting. Wondering what would be recommended as a good caliber for deer and antelope? First thoughts are .243, 25-06, 7mm-08. Also thought the .270 & .308 though I think those would be a bit much for her to shoot enough to be comfortable and accurate with the rifle. Whats your thoughts? Any one "better" than the others? Trying to stick with more common calibers due to ammunition cost and availability as I do not reload.

Thanks