Originally Posted by Big Uncle

The published charts are odd, but it looks like the reduced recoil choice would turn your father's 300 Win Mag into a 308 Win. A mild load in a 308 Win will cleanly take any deer.

If the published velocity is anywhere near correct then the reduced recoil choice would produce a fine deer rifle without changing anything but the ammunition for your father. I imagine it would be a hard pill to swallow if someone told a fellow that he was getting too old for his trusted rifle.