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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
So...Breaking in New Barrel Is a Scam?
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<blockquote data-quote="MontanaRifleman" data-source="post: 334268" data-attributes="member: 11717"><p>Topshot, here's the way I see it. I'm no expert and have only broken in one new barrel and two used barrels. For whatever the reason, when a bullet is sent down the tube, carbon, copper and more carbon are laid down in the bore. I assume the reason copper is laid down is mostly due to irregularities in the surface of the steel, be it lands, grooves or edges. The theory goes, if you fire a bullet down a clean bore against bare steel, it will smooth out and remove these irregularities.</p><p> </p><p>My experience in breaking in my Sako was that after the 13th shot was that the fouling basically all of a sudden stopped. The two previous shots showed a little less fouling, but after the 13th it had almost compleletly stopped. I fired again and cleaned again - same result, clean patch when previously I had been seeing blue patches. I fired a three shot group and cleaned again and almost the same result, a very liitle copper fouling was all I could detect. So for me, seeing was believing. Since then, I have seen the fouling come back, but it stills cleans fairly easy. I had sent it in to the factory a couple of times where they cleaned it with amonia products and I think steel brushes (unbelievably they recommend the use of steel brushes on bores) so I'm not sure what damage they may have done to the bore and maybe some moisture got in and pitted it slightly.. who knows? One day I'll get a bore scope.</p><p> </p><p>Bottom line for me is I have seen the before and after difference. So it seems worth while to do it if it reduces fouling and possibly extends time beween needed cleanings.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 334268, member: 11717"] Topshot, here's the way I see it. I'm no expert and have only broken in one new barrel and two used barrels. For whatever the reason, when a bullet is sent down the tube, carbon, copper and more carbon are laid down in the bore. I assume the reason copper is laid down is mostly due to irregularities in the surface of the steel, be it lands, grooves or edges. The theory goes, if you fire a bullet down a clean bore against bare steel, it will smooth out and remove these irregularities. My experience in breaking in my Sako was that after the 13th shot was that the fouling basically all of a sudden stopped. The two previous shots showed a little less fouling, but after the 13th it had almost compleletly stopped. I fired again and cleaned again - same result, clean patch when previously I had been seeing blue patches. I fired a three shot group and cleaned again and almost the same result, a very liitle copper fouling was all I could detect. So for me, seeing was believing. Since then, I have seen the fouling come back, but it stills cleans fairly easy. I had sent it in to the factory a couple of times where they cleaned it with amonia products and I think steel brushes (unbelievably they recommend the use of steel brushes on bores) so I'm not sure what damage they may have done to the bore and maybe some moisture got in and pitted it slightly.. who knows? One day I'll get a bore scope. Bottom line for me is I have seen the before and after difference. So it seems worth while to do it if it reduces fouling and possibly extends time beween needed cleanings. [/QUOTE]
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So...Breaking in New Barrel Is a Scam?
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