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Browning published some data a few years ago, showing the degradation of accuracy in a 22-250 vs. number of rounds fired. There was a very sharp degradation after only 750 rounds.
Their point was that their special chrome lined version went twice as long, 1,500 rounds.
I suspect that the 243 in general lasts longer than that. I also suspect that shooting 100 grain bullets at 2950 fps produces much longer barrel life than 70 grain bullets at 3550.
Including installation, a really nice new barrel is $400 and an inexpensive barrel is around $175. As the man said, live a little.
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