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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
new barrel break in
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<blockquote data-quote="MontanaRifleman" data-source="post: 737812" data-attributes="member: 11717"><p>From the article...</p><p></p><p></p><p></p><p>Let's say we are shooting a factory 300 RUM with about a 1000 round life expectancy and it takes 25 rounds to break it in (if it takes more than 25, it's probably not going to get any better). Our spent life is 2.5%. Let's consider the "theoretical" advantages. If the break in process increases accuracy strings from 30 to 60 rounds that reduces the number of cleanings by about half. My standard procedure after cleaning is to shoot 3 or 4 rounds through it to settle it back in. Over the life of the rifle, that amounts to about 100 rounds or more for 30 round cleanings which would be reduced by about 50 rounds for 60 round cleanings... net gain = 25 more useful rounds of barrel life.</p><p></p><p>I did this process with my Sendero 300 RUM and accuracy strings are around 60-70. I can't really say if the accuracy string was increased by break-in because I had no base line to work from, but in the big picture a few rounds of break in isn't that big of deal.</p><p></p><p>For custom barrels it's a moot point. A good custom should break in in about 5 rounds give or take. That's nothing.</p><p></p><p></p><p></p><p></p><p></p><p>This really puzzles me as it is a very inaccurate statement. It has been very well explained by many folks including a number of barrel makers. Some barrel makers and smiths recommend it and some don't, but it has been explained. See post #3.</p><p></p><p> </p><p></p><p>This is a useless method as most fouling occurs with the first shot. After the first shot, virtually nothing is accomplished by another shot if the fouling from the first has not been removed.</p><p></p><p></p><p></p><p>Asserting that it takes 100 rounds to break in a barrel is absurd. However, if he's referring the shoot 5 and clean method, it might take that. If it takes more than 25 shots, it's probably not gonna happen, so bag it.</p><p></p><p>I think it's also unfortunate that he is essentially besmirching other barrel makers, his competitors, for their motives. IME, good barrel makers have plenty of business and don't have to resort to this.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 737812, member: 11717"] From the article... Let's say we are shooting a factory 300 RUM with about a 1000 round life expectancy and it takes 25 rounds to break it in (if it takes more than 25, it's probably not going to get any better). Our spent life is 2.5%. Let's consider the "theoretical" advantages. If the break in process increases accuracy strings from 30 to 60 rounds that reduces the number of cleanings by about half. My standard procedure after cleaning is to shoot 3 or 4 rounds through it to settle it back in. Over the life of the rifle, that amounts to about 100 rounds or more for 30 round cleanings which would be reduced by about 50 rounds for 60 round cleanings... net gain = 25 more useful rounds of barrel life. I did this process with my Sendero 300 RUM and accuracy strings are around 60-70. I can't really say if the accuracy string was increased by break-in because I had no base line to work from, but in the big picture a few rounds of break in isn't that big of deal. For custom barrels it's a moot point. A good custom should break in in about 5 rounds give or take. That's nothing. This really puzzles me as it is a very inaccurate statement. It has been very well explained by many folks including a number of barrel makers. Some barrel makers and smiths recommend it and some don't, but it has been explained. See post #3. This is a useless method as most fouling occurs with the first shot. After the first shot, virtually nothing is accomplished by another shot if the fouling from the first has not been removed. Asserting that it takes 100 rounds to break in a barrel is absurd. However, if he's referring the shoot 5 and clean method, it might take that. If it takes more than 25 shots, it's probably not gonna happen, so bag it. I think it's also unfortunate that he is essentially besmirching other barrel makers, his competitors, for their motives. IME, good barrel makers have plenty of business and don't have to resort to this. [/QUOTE]
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new barrel break in
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