Originally Posted by joe0121
"they" say useful barrel life on a 300 WM is 2500 rounds. I have 3k through mine and still pull off 1/4 MOA groups. Personally I think the issue with barrel life is over cleaning and unproper cleaning. I also recently started HBN Coating at around 2700 rounds with great results. Free bore is the same as when the Rifle was new. I Push 208 gr Amax at 2890 FPS out of a 28" barrel. Thats with about .020 jump into the lands.
Bench rest is most probably a different story as you fire a lot of shots close together which make matters worse.
Bottom line though for what it cost to feed the big .338's a new barrel will likely be the cheapest part of the equation anyways.
+ 1 on the poor cleaning-- that'll tear one up for sure
I have lost a few barrels over the years that were cleaned well, and it seemed load intensity, barrel temperature, and velocity/ overbore nature of said round made a difference. And a rough or soft barrel will die a bit earlier as well from rapid fouling accumulation or premature metal wear. I like to shoot when it's cool/ cold out to give my barrels a fighting chance against what I'm throwing at them.
That said, I've never lost a barrel 30 cal or greater, and I do beat on my 30's from time to time.