Twice ever, 6mmARC and 30-30. (not counting shotgun slugs) I load for both of those, just worked out that I had factory ammo on hand and it shot well.
(quick look at my notes says I've deer hunted with 36 different calibers, again not counting shotgun slugs or muzzle loaders. Or three pistols that while I have actually shot deer with them, I don't consider finishing them off hunting lol)
