As you stated you will probably never see the wear to the point of needing to rebarrel your rifle. At best is is a "SWAG" when it comes to putting an exact amount of rounds that constitutes replacing the barrel. To many factors to figure in. What would occur is the accuracy of the rifle slowly goes away a little bit at a time. The poor boy method of keeping track of it is to break the rifle in first. Then shoot two good 5 shot groups at 100 yards with it and keep the targets filed away. Keep enough of the ammunition you zero and shoot the groups with and the same LOT NUMBER for future testing. It will very quickly show you when the throat starts wearing considerably on the rifle. Of course there is Throat Erosion Gauges. I would clean it a little more often than you have been. That will aslo contibute to some wear with after every hundred or so rounds putting a bullet down through a dirty bore which makes sense. Anyway I personaly do not think you would be able to tell any difference if the rifle is cleaned reguraly until around 5000 to 8000 rounds. Remember Heat is the enemy of throat erosion on the rifle barrel besides proper maintenance. A bolt gun, I would say a guy should be able to get 10000-12000 rounds out of it before accuracy starts going to the dogs. But the Test Group shot in the begining will open up considerably! Obviously as stated accuracy will slowly diminish as the rifle gets more use. Also when throat erosin starts it will accelerate quicker than normal as the wear continues to expand the chamber. But the bolt gun has time to cool down normally after each 3 or four rounds at the most. Everyone will have thier own thoughts on this because as I said it is SWAG! with all the possible factors involved even the metallurgy of the same brand rifle compared to the other one. SWAG = (Scientific Wild A** Guess!)
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Last edited by Sniper03; 06-13-2014 at 12:06 AM.