I am 5'10" with long arms.
I have found that, for me, adult rifles are on the long side of perfect for hunting.
Shooting at targets, wearing normal clothes, they fee, great. Wearing heavy clothes,
shooting from odd positions, I like my stocks a little shorter.
We put a youth stock on a M7 for my daughter. Add a 1 1/2" thick recoil pad and it would be about right for me to hunt with.
If I had a 7-08 to hunt deer in Pa. I wouldn't bother with any of the cartridges you mention.
