More powder means less barrel life, it's as simple as that. If you want to push a 140 to 3100fps and use 54gr of powder vs 2800 and 46gr, you're barrel will wear more.
I love my 6.5-284, it's accurate, recoil is mild. But it's overkill inside 500y IMHO. If you can't read the wind, not even e...