If 1/2 MOA is to be maintained you'll probably be re-barreling it about every 400-450 rounds.
For hunting big game 1/2 MOA is actually not needed, but I would not want it to shoot an average of over 1.5 MOA before I installed a new barrel.
Assuming you have a 1/2 MOA rifle to start with, I would make a guess that will mean a new barrel for hunting about every 1000 rounds.
Some steels do better then others and the more powder you burn and the higher you run your pressure, the shorter the life will be. Lots of cooling time between shots help a bunch too.
My Nos is sub MOA at 500 rounds. Bore not that bad thru Hawkeye. Early throat erosion. I worked it over with JB, recoated with DBC.
I think it’ll go a thousand. We’ll see.
DF
