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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rifles in the rain *important*
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<blockquote data-quote="elkaholic" data-source="post: 1282733" data-attributes="member: 13833"><p>Gordo....My situation was not from remaining water because it would not shoot even after I was home and completely dried out. It did not come back to original poi and group until I Completely removed the carbon ring by soaking the throat in solvent for hours. I think the carbon retains moisture for some time and probably remains swollen somewhat because of that.</p><p></p><p>Parshal...... You could see a carbon ring with a bore scope but it does not take much to wreck havoc. When you consider the throat is normally only .0005" over bore diameter, you can easily see how very little can have a very big affect. .0002" up of down in throat size can have a sizable affect in pressure, and who knows what it does to a bullet when carbon is involved.</p><p>I have learned over the years to treat the throat LIKE YOU DO HAVE A CARBON RING even if it isn't present. The problem this time was carbon plus water, (IMO) which I learned was a whole different animal. To eliminate the carbon problem, I now take a patch, soaked with a good carbon solvent, and stuff it into the throat after cleaning well as you normally would. I leave it there for a day or even two days. I then punch the patch out by inserting the rod into the bore and look at the patch. If there is a deposit of carbon present, you can usually see a dark ring at least part way around the patch. I then take a CLEAN wire bore brush soaked in solvent and ROTATE it in the throat. At that point I wrap a patch around an undersize bore brush and rotate that in the throat. Usually that will remove the softened carbon, but if more color still persists, soak it overnight again. </p><p>You can use gun products, or even better, automotive carbon remover products. Be careful those products aren't spilled on a nice wood stock, or somewhere else you don't want them. I have had rifles that NEVER developed a carbon ring and some that get them every few hundred rounds. The point is that you can do an otherwise good cleaning routine and STILL develop a carbon ring so prevention is the best way to go.....I hope this helps........Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1282733, member: 13833"] Gordo....My situation was not from remaining water because it would not shoot even after I was home and completely dried out. It did not come back to original poi and group until I Completely removed the carbon ring by soaking the throat in solvent for hours. I think the carbon retains moisture for some time and probably remains swollen somewhat because of that. Parshal...... You could see a carbon ring with a bore scope but it does not take much to wreck havoc. When you consider the throat is normally only .0005" over bore diameter, you can easily see how very little can have a very big affect. .0002" up of down in throat size can have a sizable affect in pressure, and who knows what it does to a bullet when carbon is involved. I have learned over the years to treat the throat LIKE YOU DO HAVE A CARBON RING even if it isn't present. The problem this time was carbon plus water, (IMO) which I learned was a whole different animal. To eliminate the carbon problem, I now take a patch, soaked with a good carbon solvent, and stuff it into the throat after cleaning well as you normally would. I leave it there for a day or even two days. I then punch the patch out by inserting the rod into the bore and look at the patch. If there is a deposit of carbon present, you can usually see a dark ring at least part way around the patch. I then take a CLEAN wire bore brush soaked in solvent and ROTATE it in the throat. At that point I wrap a patch around an undersize bore brush and rotate that in the throat. Usually that will remove the softened carbon, but if more color still persists, soak it overnight again. You can use gun products, or even better, automotive carbon remover products. Be careful those products aren't spilled on a nice wood stock, or somewhere else you don't want them. I have had rifles that NEVER developed a carbon ring and some that get them every few hundred rounds. The point is that you can do an otherwise good cleaning routine and STILL develop a carbon ring so prevention is the best way to go.....I hope this helps........Rich [/QUOTE]
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Rifles in the rain *important*
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