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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Shocked at how much throat erosion
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<blockquote data-quote="EddieHarren" data-source="post: 184355" data-attributes="member: 5138"><p><strong>Barrel Erosion</strong></p><p></p><p>Steve, just to clarify, after the initial firecracking and erosion, on several barrels in 7mm Mag, the barrels were toast. Once the barrels were replaced, and the powder was changed to H4831, we saw no more firecracking or excessive erosion. The barrels, that originally showed the erosion, would no longer perform to the standards, that were required of these rifles. Examination of previous take-off barrels, before we started using R22, showed no excessive erosion or fire cracking, even after 1500 rds. The barrels, same manufacturer, that were used with the R22 propellant, showed excessive erosion in as little as 450 rds. </p><p>The ammo, used by this agency, is loaded by an outside contractor, who must keep pressure, velocity and accuracy within very tight tolerences.</p></blockquote><p></p>
[QUOTE="EddieHarren, post: 184355, member: 5138"] [b]Barrel Erosion[/b] Steve, just to clarify, after the initial firecracking and erosion, on several barrels in 7mm Mag, the barrels were toast. Once the barrels were replaced, and the powder was changed to H4831, we saw no more firecracking or excessive erosion. The barrels, that originally showed the erosion, would no longer perform to the standards, that were required of these rifles. Examination of previous take-off barrels, before we started using R22, showed no excessive erosion or fire cracking, even after 1500 rds. The barrels, same manufacturer, that were used with the R22 propellant, showed excessive erosion in as little as 450 rds. The ammo, used by this agency, is loaded by an outside contractor, who must keep pressure, velocity and accuracy within very tight tolerences. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Shocked at how much throat erosion
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