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Rifles, Reloading, Optics, Equipment
Reloading
Barrel break in and fire forming these days
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<blockquote data-quote="jeb405" data-source="post: 2220152" data-attributes="member: 78163"><p>Yes, one of the really not at all agreed on topics is rifle barrel breakin. Even the barrel makers and custom rifle builders don't agree. If I remember correctly an old article written by Gale McMillan even postulated it was a way for barrel makers to sell more barrels. I hope I am not mis-remembering.</p><p></p><p>Some people think you break in custom barrel differently than factory, etc. I think I have more than one 1/4 MOA gun but I am not good enough both reloading and shooting to see that commonly, so keep that in mind. I do tend to agree with comment about not using high quality ammo for break-in period, and I consider it a period. But if you have virgin brass it is a great opportunity to get it once fired. </p><p></p><p>In example I am breaking in a Sig 716i 308 and using some Australian ball ammo to do it. My method is kind of a hybrid of different methods. First time, swab the bore to make sure no oil or debris, fire between 20-50 rounds, never letting barrel get too hot (don't measure temps yet, device in transit). Then I clean but really focussing on carbon. Even in my older guns if they are shooting good groups I ignore copper. After the first time, I do the same thing one more time and I am done. So many people still believe in the shoot 1 clean shoot 1 method I have not gone all in on no breakin. But I think the other extreme is not the best use of my time, ammo as well as barrel life in barrel burners and I do not think I am risking my investments. One commonly agreed upon idea is that each time cleaning you are risking damage that can deteriorate the accuracy we all seek, so I think that also support my method. Or maybe I am just lazy and trying to justify it.</p><p></p><p>I do have a borescope but limited experience with it. In general I am not sure I am better off seeing a bunch of things in the bore I don't fully understand. The custom barrels look much better than factory but it has not always translated in accuracy.</p><p></p><p>Again, this is not a recommendation or anything I have a ton of data to support, it's just what I do.</p><p></p><p>JB</p></blockquote><p></p>
[QUOTE="jeb405, post: 2220152, member: 78163"] Yes, one of the really not at all agreed on topics is rifle barrel breakin. Even the barrel makers and custom rifle builders don't agree. If I remember correctly an old article written by Gale McMillan even postulated it was a way for barrel makers to sell more barrels. I hope I am not mis-remembering. Some people think you break in custom barrel differently than factory, etc. I think I have more than one 1/4 MOA gun but I am not good enough both reloading and shooting to see that commonly, so keep that in mind. I do tend to agree with comment about not using high quality ammo for break-in period, and I consider it a period. But if you have virgin brass it is a great opportunity to get it once fired. In example I am breaking in a Sig 716i 308 and using some Australian ball ammo to do it. My method is kind of a hybrid of different methods. First time, swab the bore to make sure no oil or debris, fire between 20-50 rounds, never letting barrel get too hot (don't measure temps yet, device in transit). Then I clean but really focussing on carbon. Even in my older guns if they are shooting good groups I ignore copper. After the first time, I do the same thing one more time and I am done. So many people still believe in the shoot 1 clean shoot 1 method I have not gone all in on no breakin. But I think the other extreme is not the best use of my time, ammo as well as barrel life in barrel burners and I do not think I am risking my investments. One commonly agreed upon idea is that each time cleaning you are risking damage that can deteriorate the accuracy we all seek, so I think that also support my method. Or maybe I am just lazy and trying to justify it. I do have a borescope but limited experience with it. In general I am not sure I am better off seeing a bunch of things in the bore I don't fully understand. The custom barrels look much better than factory but it has not always translated in accuracy. Again, this is not a recommendation or anything I have a ton of data to support, it's just what I do. JB [/QUOTE]
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Barrel break in and fire forming these days
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