19-09-2004, 06:15 PM
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11 March 2004
By Ron Gaitten
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Moly destroys your barrel by attracting and trapping water in the barrel causing severe pitting.
Even if you live in a dry climate, temperature changes experienced during the hunting season (gun inside warm house - gun outside in the cold) causes the metal to sweat.
My barrel was destroyed by pitting after only 154 rounds 40 of which were moly coated (fail safe). I had cleaned every 10-20 rounds with Hoppes9 and Shooters Choice, both good cleaners, with the patch and brush method. It didn't get it out.
Moly is EXTREMELY hard to get out. Plug the barrel and soak with Kroil overnight. Then scrub with a mix of JB-Bore Compound and Kroil for 5-20 short stroke technique passes. USE A BORE GUIDE, quality rod and jag, and be careful around the crown (don't bang the heck out of it). Finish with a solvent of choice and good oil. Hoppes9 or Shooters Choice mops out the JB well. If you choose, you can use something a little stronger like Montana Extreme for a final solvent pass. Extreme copper solvents like Sweets 7.62 although are great at removing copper are probably not necessary with this cleaning process as the copper should have been mechanically removed by the JB/Kroil mix.
A moly conditioned barrel will not shoot Std. copper bullets accurately (relative term).
Stainless barrels are effeted too.
This does not apply to "Lubalox" (found on Win. ballistic tip) or the Barnes coatings. However, I still advise caution.
Over the last several months I have poured many hours of extensive research into this issue. I have spoken with nearly every manufacturer in the industry, and read every publication I could find. Many of the high end manufacturers made comments such as these, "I would never run moly coated bullets through my guns," "Not in a million years would I use moly coated bullets," "moly conditioned barrels shoot std copper bullets very poorly," " moly is nearly impossible to remove." The manufacturers that didn't make a derogatory comment made one something like this, "we have no comment." Winchester refused to comment on several e-mails I sent addressing this issue, but replied to every other product question I submitted (Hmm). The most telling quote was "moly is something we all got caught up in way too fast, before any real world data could be collected, and we are all paying the price for it now." Moly does have some good properties, however I do not believe they justify the risk.
Please send any comments/insights to me, we are all in this together. Remember the folks who created this technology didn't do it with the intent to harm anything. We don't have an FDA of firearms. Lots of hit and miss things have come down the pike. That's the nature of what we do. Special thanks to the staffs of Nosler, Krieger Barrels, and HS-Precision for their assistance and honesty, not to mention their incredible products.
Klippet fra:Jakt,våpen och handladdnings forumet.
mvh
knerik
11 March 2004
By Ron Gaitten
---------------------------------------------------------------------
Moly destroys your barrel by attracting and trapping water in the barrel causing severe pitting.
Even if you live in a dry climate, temperature changes experienced during the hunting season (gun inside warm house - gun outside in the cold) causes the metal to sweat.
My barrel was destroyed by pitting after only 154 rounds 40 of which were moly coated (fail safe). I had cleaned every 10-20 rounds with Hoppes9 and Shooters Choice, both good cleaners, with the patch and brush method. It didn't get it out.
Moly is EXTREMELY hard to get out. Plug the barrel and soak with Kroil overnight. Then scrub with a mix of JB-Bore Compound and Kroil for 5-20 short stroke technique passes. USE A BORE GUIDE, quality rod and jag, and be careful around the crown (don't bang the heck out of it). Finish with a solvent of choice and good oil. Hoppes9 or Shooters Choice mops out the JB well. If you choose, you can use something a little stronger like Montana Extreme for a final solvent pass. Extreme copper solvents like Sweets 7.62 although are great at removing copper are probably not necessary with this cleaning process as the copper should have been mechanically removed by the JB/Kroil mix.
A moly conditioned barrel will not shoot Std. copper bullets accurately (relative term).
Stainless barrels are effeted too.
This does not apply to "Lubalox" (found on Win. ballistic tip) or the Barnes coatings. However, I still advise caution.
Over the last several months I have poured many hours of extensive research into this issue. I have spoken with nearly every manufacturer in the industry, and read every publication I could find. Many of the high end manufacturers made comments such as these, "I would never run moly coated bullets through my guns," "Not in a million years would I use moly coated bullets," "moly conditioned barrels shoot std copper bullets very poorly," " moly is nearly impossible to remove." The manufacturers that didn't make a derogatory comment made one something like this, "we have no comment." Winchester refused to comment on several e-mails I sent addressing this issue, but replied to every other product question I submitted (Hmm). The most telling quote was "moly is something we all got caught up in way too fast, before any real world data could be collected, and we are all paying the price for it now." Moly does have some good properties, however I do not believe they justify the risk.
Please send any comments/insights to me, we are all in this together. Remember the folks who created this technology didn't do it with the intent to harm anything. We don't have an FDA of firearms. Lots of hit and miss things have come down the pike. That's the nature of what we do. Special thanks to the staffs of Nosler, Krieger Barrels, and HS-Precision for their assistance and honesty, not to mention their incredible products.
Klippet fra:Jakt,våpen och handladdnings forumet.
mvh
knerik