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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Break in problems?
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<blockquote data-quote="Gene" data-source="post: 174129" data-attributes="member: 7402"><p><strong>Barrel cleaning</strong></p><p></p><p>You might try some patches with JB compound. Make about 20 strokes without exiting the muzzle. Clean it out with denatured alcohol. Then check for fouling with very wet patch of Sweet's, Montana Extreme, etc. If its still fouling, try the JB again. You can take a one size smaller brass brush, wrap a patch around it, and stroke the JB back and forth till your arm hurts. JB will not eat steel. For carbon, I am using GM Tech, bought at a Chevy dealer. Works real good. When carbon disappears, I go after the copper. When you have near all the copper out, clean it up thoroughly, then let Wipe Out or Milfoam sit in it overnight. Next morning, it should come clean.</p><p></p><p>Factory barrels are known for fouling. Caused by rough land surface which picks up the copper from bullet jacket. As the lands smooth out, the problem will lessen. This is why JB will help.</p></blockquote><p></p>
[QUOTE="Gene, post: 174129, member: 7402"] [b]Barrel cleaning[/b] You might try some patches with JB compound. Make about 20 strokes without exiting the muzzle. Clean it out with denatured alcohol. Then check for fouling with very wet patch of Sweet's, Montana Extreme, etc. If its still fouling, try the JB again. You can take a one size smaller brass brush, wrap a patch around it, and stroke the JB back and forth till your arm hurts. JB will not eat steel. For carbon, I am using GM Tech, bought at a Chevy dealer. Works real good. When carbon disappears, I go after the copper. When you have near all the copper out, clean it up thoroughly, then let Wipe Out or Milfoam sit in it overnight. Next morning, it should come clean. Factory barrels are known for fouling. Caused by rough land surface which picks up the copper from bullet jacket. As the lands smooth out, the problem will lessen. This is why JB will help. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Break in problems?
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