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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cooling a barrel 🤔
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<blockquote data-quote="AZShooter" data-source="post: 2192515" data-attributes="member: 5219"><p>After chambering a barrel I used the bore scope to view the results. There was a tiny "feather edge" on the lands of the throat. I shot one shot and looked again, it was gone. It is just an observation. As to how to break it in, do what the manufacturer says to do.</p><p></p><p>In 2007 I made a CO2 cooling system. Since then I have refined it. The picture shows a regulator. It is not necessary. Just a fitting with a ball valve is all that is needed. a 20 lb tank is minimum. The hose should be tapered at the chamber end for ease of sliding it into position. The CO2 is released with low flow. It only takes 20-30 seconds to reach ambient temp unless the barrel is quite hot. When I feel the barrel is approaching close to the same temp at the scope, the CO2 is turned off. It will continue to cool from inside out. Many at the range have adopted this system. In fact Dave Miller the gunsmith made one too.</p><p></p><p>I generally use the system if I am working up a load, only brought one rifle or it is during the hotter months.</p><p></p><p><a href="https://imageshack.com/i/poaC8t2Sj" target="_blank"><img src="https://imagizer.imageshack.com/v2/xq90/924/aC8t2S.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="AZShooter, post: 2192515, member: 5219"] After chambering a barrel I used the bore scope to view the results. There was a tiny "feather edge" on the lands of the throat. I shot one shot and looked again, it was gone. It is just an observation. As to how to break it in, do what the manufacturer says to do. In 2007 I made a CO2 cooling system. Since then I have refined it. The picture shows a regulator. It is not necessary. Just a fitting with a ball valve is all that is needed. a 20 lb tank is minimum. The hose should be tapered at the chamber end for ease of sliding it into position. The CO2 is released with low flow. It only takes 20-30 seconds to reach ambient temp unless the barrel is quite hot. When I feel the barrel is approaching close to the same temp at the scope, the CO2 is turned off. It will continue to cool from inside out. Many at the range have adopted this system. In fact Dave Miller the gunsmith made one too. I generally use the system if I am working up a load, only brought one rifle or it is during the hotter months. [URL='https://imageshack.com/i/poaC8t2Sj'][IMG]https://imagizer.imageshack.com/v2/xq90/924/aC8t2S.jpg[/IMG][/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cooling a barrel 🤔
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