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Long Range Hunting & Shooting
Barrel break in true or not?
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<blockquote data-quote="azsugarbear" data-source="post: 2746292" data-attributes="member: 4809"><p>Before getting into long range shooting, I watched a lot of the Sniper 101 series by TiborasaurusRex on youtube. The guy knows his stuff and the science/physics behind a lot of what he recommends. He is not the only source I used for my start into the long range game, but I have found merit in his videos. I recommend the series highly. </p><p></p><p>Here is what I have found with my own rifle barrels (which include Lilja, Krieger, Brux, Benchmark, Rock Creek, Proof Research, and PVA). With new barrels, they tend to foul heavily with the first few rounds. I don't care if you clean after one or ten shots - the patches are black and take several wash/rinse/repeat cycles before the patches come out clean. After the first 20 to 50 rounds, the barrel doesn't foul nearly as much and clean up is much easier. That alone tells me that something is happening to the bore and with the barrel break in process. Whether you call it break in or settling in - it is the same thing.</p><p></p><p>Aside from barrel break in, there is also the phenomenon of barrel stability as it pertains to velocity. You will see this happen when you shoot multiple rounds of the same load over a chrony from a freshly cleaned barrel. Velocity will rise with each additional bullet that goes down a freshly-cleaned barrel until it hits a 'plateau'. With some of my barrels, it happens within 5-10 rounds. With other barrels, it takes closer to 20 rounds before velocity stabilizes. After my velocity flattens out or stabilizes, I can fire another 150 to 400 rounds through the bore before velocity begins to spike. At that point, I strip all the carbon and copper out and start over again - building up to that velocity plateau.</p><p></p><p>I will stop short of saying it works this way for everbody, but it has been fairly consistent with the eleven custom barrels I have wrung out.</p></blockquote><p></p>
[QUOTE="azsugarbear, post: 2746292, member: 4809"] Before getting into long range shooting, I watched a lot of the Sniper 101 series by TiborasaurusRex on youtube. The guy knows his stuff and the science/physics behind a lot of what he recommends. He is not the only source I used for my start into the long range game, but I have found merit in his videos. I recommend the series highly. Here is what I have found with my own rifle barrels (which include Lilja, Krieger, Brux, Benchmark, Rock Creek, Proof Research, and PVA). With new barrels, they tend to foul heavily with the first few rounds. I don't care if you clean after one or ten shots - the patches are black and take several wash/rinse/repeat cycles before the patches come out clean. After the first 20 to 50 rounds, the barrel doesn't foul nearly as much and clean up is much easier. That alone tells me that something is happening to the bore and with the barrel break in process. Whether you call it break in or settling in - it is the same thing. Aside from barrel break in, there is also the phenomenon of barrel stability as it pertains to velocity. You will see this happen when you shoot multiple rounds of the same load over a chrony from a freshly cleaned barrel. Velocity will rise with each additional bullet that goes down a freshly-cleaned barrel until it hits a 'plateau'. With some of my barrels, it happens within 5-10 rounds. With other barrels, it takes closer to 20 rounds before velocity stabilizes. After my velocity flattens out or stabilizes, I can fire another 150 to 400 rounds through the bore before velocity begins to spike. At that point, I strip all the carbon and copper out and start over again - building up to that velocity plateau. I will stop short of saying it works this way for everbody, but it has been fairly consistent with the eleven custom barrels I have wrung out. [/QUOTE]
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