advise on what low recoil 4/500 yard caliber to choose?

[Pstores]

I have killed deer with .243,.257,25-06,.260, .270,.270wsm,7-08,7mm, .308,.300wm. And for a small package, lightweight, low recoil it is really hard to beat a .260 and 7-08. My favorite and been hunting with since 2004 is a .260 rem Mountian rifle. Tack driver and hell on deer with 120 federal fusions. But ease of ammo then gets you to the 7mm-08. If considering all things I stated above.