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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM barrel life. The whole documantation.
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<blockquote data-quote="AZShooter" data-source="post: 273442" data-attributes="member: 5219"><p>I disagree with your generalized statment: </p><p></p><p>"The fact is the 300 RUM cartridge is hard on barrels. So hard, it CAN change the way your loads react throughout the life of the barrel."</p><p></p><p>I have a 27" SS Lilja in 300 RUM that has 468 rounds through it and it never showed the pressure problems you have had. As a matter of fact we would hear plenty of stories from others with even worse over bore calibers if this sort of issue was common. I had a factory 7 RUM that I shot the heck out of without issues. </p><p></p><p>You never mentioned your cleaning procedure nor did you mention what you saw with the borescope. I will admit you were quite thorough with your loading and testing. </p><p></p><p>My conclusion? Seeing you are no longer shooting it, JB the hell out of it before you ship it back to Rock. I'd bet you would find you have a closed up bore due to carbon buildup which is giving you the higher velocities and pressures. You should be able to push a tight patch through before using JB and then afterwards and feel the difference. </p><p></p><p>If you do this let us know what you discover.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 273442, member: 5219"] I disagree with your generalized statment: "The fact is the 300 RUM cartridge is hard on barrels. So hard, it CAN change the way your loads react throughout the life of the barrel." I have a 27" SS Lilja in 300 RUM that has 468 rounds through it and it never showed the pressure problems you have had. As a matter of fact we would hear plenty of stories from others with even worse over bore calibers if this sort of issue was common. I had a factory 7 RUM that I shot the heck out of without issues. You never mentioned your cleaning procedure nor did you mention what you saw with the borescope. I will admit you were quite thorough with your loading and testing. My conclusion? Seeing you are no longer shooting it, JB the hell out of it before you ship it back to Rock. I'd bet you would find you have a closed up bore due to carbon buildup which is giving you the higher velocities and pressures. You should be able to push a tight patch through before using JB and then afterwards and feel the difference. If you do this let us know what you discover. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM barrel life. The whole documantation.
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