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I have a USGI chrome lined barrel made by H&R in 1962. I shoot Irene quite a bit (I figure I have somewhere around 3 to 4 thousand rounds through her right now) and I was wondering what the life of one of these barrels is?
 

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;) I think you have about 10000 or11000 to go until she gives up on you! :D
 

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barrel life

I have heard that for a non-chrome lined barrel, throat erosion goes up by about 1 per 1,000 rounds fired. Given that a barrel is considered beat up by about a TE of 5, that says a regular barrel has a life of 5,000 rounds before it gets beyond service grade.

Chrome lined barrels will do better than regular barrels, so up my estimates.

Art
 

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Art7 I will disagree with you on this one, heat and erosion kills the throat and muzle not # of rounds, Hot and fast vrs. slow and go if a 1000rds ment that my t/e grew +1 then +2 then +3 my m1a would be wore out by now, I must have about 5000+ thru the wife`s rifle and it still shoots outstandingly sweet!! No its not chrome lined just a Springfield med. NM barrel nothing high doller or special.
 

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FWIW, the SS NM medium weight Wilson barrel that came on my Loaded didn't start to show noticeable loss in accuracy until after 6K rounds (bench rested with a scope). However, it still shot better than me when shooting from position until over 7K rounds, when I started to get more flyers and my groups started to open up. I replaced it with a Barnett six groove 1:10 medium weight around 7.5K, but still haven't been able to get quite as tight of groups witht the Barnett as I did with the Wilson. Your mileage may vary.
 
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