Quote:
Texas Rifleman-
I believe a 1911's barrel will last around 52,000,000 rounds before it begins to lose accuracy
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There, fixed it for you.
Although I've seen a few heavily leaded barrels that lost accuracy. After a good cleaning, they were just about as good as new.
I would submit that the barrel wear
per se (wear between the contact surface of the barrel and the bullet itself) is not a significant factor. Wear between the barrel and the bushing, barrel and frame, etc...now maybe we're getting somewhere. But not today, or any time soon.
Lots of WWI and WWII 1911s out there shooting just fine, with untold hundreds of thousands of rounds through them.