It seems to me that should the .308 figures be even near accurate that seems to translate to:
6000 rounds through the barrel........
@ 20 rounds per box we have 300 boxes of ammunition........
Each season IF and I say IF you fire 5 boxes (100 rounds) in practice and actual hunting per season........
The rifle, with care, will last 70 seasons !!
The grand children will fight over "Dad's" old rifle.
LOL
I am 67 and just entering my "mid-life" crisis. and I can't find a place near Houston to hunt hogs without maxing a credit card.
