Any of those rifles will work great for you. My favorite is a-bolt. If you do get a a-bolt,be sure and get the boss. Looks like you forgot the excellent .338 win mag. If you want a outstanding close to medium (within 250-300) range rifle without magnum recoil-check out the 35 whelen. Of the magnums-either 338wm or .325wsm. There are bigger,faster cartridges but it's my opinion that one would be shooting instead of hunting if those cartridges won't do the trick.