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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Removing copper
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<blockquote data-quote="Winfwt338-06" data-source="post: 1879883" data-attributes="member: 113762"><p>Joe, having had the opportunity to spend 5yrs in ballistics labs between Barnes and Nosler, four of 5 with Barnes, between 2000 and 2005 I can tell you the procedure I followed and still do today. First, after proper barrel break in procedure is completed, I still prefer cr-10. Use a nylon brush 2 blue diameters smaller than what you are cleaning. Wrap 2x2 patch over brush corner to corner. Should be snug when put in bore, if loose fold 1/4" of first corner ok'd patch before wrapping. Saturate with cr-10. Scrub in small aggressive strokes bore to muzzle, using smaller dia brush allows to scrub without bending bristles. Scrubbing helps aerate ammonia in solvent, speeding up the process. As others have stated, nylon or SS won't give false blue patch readings. Repeat as needed until patches come out clean. This was technique at Barnes in my time there, still use it today, quick and efficient. You can cut 2x2 patch down if too tight and scrubbing is not possible.</p></blockquote><p></p>
[QUOTE="Winfwt338-06, post: 1879883, member: 113762"] Joe, having had the opportunity to spend 5yrs in ballistics labs between Barnes and Nosler, four of 5 with Barnes, between 2000 and 2005 I can tell you the procedure I followed and still do today. First, after proper barrel break in procedure is completed, I still prefer cr-10. Use a nylon brush 2 blue diameters smaller than what you are cleaning. Wrap 2x2 patch over brush corner to corner. Should be snug when put in bore, if loose fold 1/4" of first corner ok'd patch before wrapping. Saturate with cr-10. Scrub in small aggressive strokes bore to muzzle, using smaller dia brush allows to scrub without bending bristles. Scrubbing helps aerate ammonia in solvent, speeding up the process. As others have stated, nylon or SS won't give false blue patch readings. Repeat as needed until patches come out clean. This was technique at Barnes in my time there, still use it today, quick and efficient. You can cut 2x2 patch down if too tight and scrubbing is not possible. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Removing copper
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