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Rifles, Reloading, Optics, Equipment
Gunsmithing
Why is there no coatings used in rifle throats to slow erosion?
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<blockquote data-quote="J E Custom" data-source="post: 584760" data-attributes="member: 2736"><p>I have been reading this thread and the discussions have been interesting to say the least.</p><p></p><p>A little history : There have been many coatings over the years that were designed to prolong </p><p>the BARREL Life and none of them has stood the test of time as far as accuracy.</p><p></p><p>A lot of the military weapons have been coated with one thing or another. The chrome lining</p><p>has the best track record for the prevention of erosion and corrosion. they even tried using a </p><p>Stellight process (This Is some very hard stuff) but apparently it was not a practical solution</p><p>and to costly.</p><p></p><p>I personally think that the throat erosion on most weapons is a by product of our need for speed</p><p>and therefore self inflicted in most cases. Before all of these High velocity cartriges throat erosion</p><p>was not a consideration and most rifles lasted a lifetime. </p><p></p><p>We have become more interested in velocity and accuracy and that has changed things.</p><p></p><p>It is simple physics: the more velocity, the more powder, the more powder the more erosion.</p><p></p><p>If you build a hot rod you can expect this problem sooner. Setting the barrel back is a simple </p><p>and proven fix. re barreling is the next thing that can be done and accuracy maintained.</p><p></p><p>I have seen barrels with the throat completely gone for several inches still shoot well because </p><p>the barrel it's self was taken care of and maintained.</p><p></p><p>There may be a coating out there waiting to be discovered that will double the life of the barrels</p><p>accuracy but for now IMO a good smith can restore a rifles accuracy better.</p><p></p><p>Just my comments on coatings.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 584760, member: 2736"] I have been reading this thread and the discussions have been interesting to say the least. A little history : There have been many coatings over the years that were designed to prolong the BARREL Life and none of them has stood the test of time as far as accuracy. A lot of the military weapons have been coated with one thing or another. The chrome lining has the best track record for the prevention of erosion and corrosion. they even tried using a Stellight process (This Is some very hard stuff) but apparently it was not a practical solution and to costly. I personally think that the throat erosion on most weapons is a by product of our need for speed and therefore self inflicted in most cases. Before all of these High velocity cartriges throat erosion was not a consideration and most rifles lasted a lifetime. We have become more interested in velocity and accuracy and that has changed things. It is simple physics: the more velocity, the more powder, the more powder the more erosion. If you build a hot rod you can expect this problem sooner. Setting the barrel back is a simple and proven fix. re barreling is the next thing that can be done and accuracy maintained. I have seen barrels with the throat completely gone for several inches still shoot well because the barrel it's self was taken care of and maintained. There may be a coating out there waiting to be discovered that will double the life of the barrels accuracy but for now IMO a good smith can restore a rifles accuracy better. Just my comments on coatings. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why is there no coatings used in rifle throats to slow erosion?
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