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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Borescope Images - Help me identify...
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<blockquote data-quote="BILLP102740" data-source="post: 1780282" data-attributes="member: 81250"><p>Carbon Ring also called the dreaded donut. Its a problem for all shooters because it has a detrimental impact on accuracy. The carbon ring is extremely hard ; hard enough to break reamers for those who tried a quick road. The ring at the end of the chamber where the brass case is seated is the most important ring because as the case is pushed forward and on top of the ring by combustion, pressure and fliers climb rapidly. Chemical treatment using a phosphor bronze brush and patches inserted from the rear only up to the ring itself - not into the leade or rifling. Rotate at slow speeds using as low rpm as your cordless driver will go without stalling. Keep the ring wet by a program of hourly replacement of the chemical when your just soaking it. The key to success is not to go beyond the carbon ring. J B will also work but its labor intensive your looking at hours of round trips with frequent addition of more JB and/or patch replacement. The tighter the patch fits, the better it works. When is it time to do all this? When you begin to see totally stupid fliers. Those that have no possible explanation from conditions or human error. </p><p>Nice pics and good questions too. Its called experience - the best way to learn.</p></blockquote><p></p>
[QUOTE="BILLP102740, post: 1780282, member: 81250"] Carbon Ring also called the dreaded donut. Its a problem for all shooters because it has a detrimental impact on accuracy. The carbon ring is extremely hard ; hard enough to break reamers for those who tried a quick road. The ring at the end of the chamber where the brass case is seated is the most important ring because as the case is pushed forward and on top of the ring by combustion, pressure and fliers climb rapidly. Chemical treatment using a phosphor bronze brush and patches inserted from the rear only up to the ring itself - not into the leade or rifling. Rotate at slow speeds using as low rpm as your cordless driver will go without stalling. Keep the ring wet by a program of hourly replacement of the chemical when your just soaking it. The key to success is not to go beyond the carbon ring. J B will also work but its labor intensive your looking at hours of round trips with frequent addition of more JB and/or patch replacement. The tighter the patch fits, the better it works. When is it time to do all this? When you begin to see totally stupid fliers. Those that have no possible explanation from conditions or human error. Nice pics and good questions too. Its called experience - the best way to learn. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Borescope Images - Help me identify...
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