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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
High Velocity Throat Erosion
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<blockquote data-quote="bigngreen" data-source="post: 2585127" data-attributes="member: 13632"><p>Over the years borescoping guns I think there are a couple different types of wear, you'll the blow torch effect that will start at any edge and they fire crack stuff and you'll see just wear I think from the powder.</p><p>Where the cone point is coming of the shoulder does change thing BUT it's not like doubling your life or something extreme but if you can keep the cone point on hotter chambering in the neck it does seem to take something from the throat.</p><p>Unburnt powder gets blasted out of the case and we know that if you focus anything at speed even water it will cut or abrade and I think it does contribute, I've scoped a number of barrels that were ran with N570 and they were toast in a well maintained rifle in 300 rounds for a 338 but then again they were all +P version throats so half the lands are gone to start with.</p></blockquote><p></p>
[QUOTE="bigngreen, post: 2585127, member: 13632"] Over the years borescoping guns I think there are a couple different types of wear, you'll the blow torch effect that will start at any edge and they fire crack stuff and you'll see just wear I think from the powder. Where the cone point is coming of the shoulder does change thing BUT it's not like doubling your life or something extreme but if you can keep the cone point on hotter chambering in the neck it does seem to take something from the throat. Unburnt powder gets blasted out of the case and we know that if you focus anything at speed even water it will cut or abrade and I think it does contribute, I've scoped a number of barrels that were ran with N570 and they were toast in a well maintained rifle in 300 rounds for a 338 but then again they were all +P version throats so half the lands are gone to start with. [/QUOTE]
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High Velocity Throat Erosion
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