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removing moly from a barrel

wolfman

Silver $$ Contributor
I know this has been discussed before, but I have a factory Rem 700 barrel that has had 75-ish moly bullets run through it. I'd really like to transition to uncoated bullets. I've read that Kroil and JB are usually used to remove moly from a barrel, but unfortunatly I don't have either. I do have Iosso. Any chance this will do the trick?
 
Years ago I tried the "spray on" moly application for bullets and a wet moly patch to coat the bores. I didn't really have any luck with it so, removed it from the bores and prepped bullets with acetone. It worked for me, but maybe only for that particular type of moly formula. Might want to try it before using any type of abrasive.
 
Wolfman ... since you know this has been discussed on here previously, do a search on removing moly. This may be slightly faster and more enlightening than waiting for individual replies to this post.
 
I had one Hart barrel which had been shot with moly (my dad was a moly fan) I just cleaned with a brush and Hoppes, as I have been doing for sixty years, after each group. Groups opened up to 1/2 moa at about the twenty to thirty shot mark then returned to shooting well. WH
 
Wolfman ... since you know this has been discussed on here previously, do a search on removing moly. This may be slightly faster and more enlightening than waiting for individual replies to this post.
I did that- but the recomendations were for products I don't have- hence my asking if what I have might be effective
 
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I bought a late 90's Colt AR15 HBAR CAR (24", SS, 1:9" barrel) from a friend who used it for P-dog hunting. He estimated that it had around 9K rounds through it, 95% of them moly-coated. When I got it it didn't shoot well at all, so I ended up buying a new Kreiger barrel and shot it across-the-course for a while. About two years later I decided I wanted to build real AR Match Rifle and that I wanted to put the Colt back in it's "stock" form (including the barrel).

So I read a lot about removing moly from a barrel - lots of conflicting info. Now my barrel obviously had a lot more moly in it than yours. But the only thing that I found effective was JB on felt cleaning pellets, good quality bronze brushes and Boretech Eliminator to help loosen the carbon. It took 1,000's of strokes, but I finally got it "clean".

I put the gun back together and now it will consistently shoot .5 moa, 200yd., 5-shot groups with 50gr VMAX bullets. Not bad for 9K rounds on the barrel. My guess is the moly build up, saved the barrel.

I doubt with only 75 rounds on your barrel you need to do much more than just do a seriously good cleaning (maybe a few strokes with Losso).
 
I was just about to experiment with moly coating after reading the article in the bulletin 2 days ago. I think now that I will stick with naked bullets
 
I have shot a lot of moly bullets, just clean as normal...as others have suggested.

The lure to many that used moly in the beginning was the "no cleaning" fantasy. Then, their barrels ended up in a real mess, which has facilitated the "problem with Moly" as moly can build up over time.
Clean like you normally do.

Then they discovered that Water gets under moly and causes rust, so don't go scuba diving with your rifle when shooting moly bullets.
 
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So....if I have 1000 Berger 68s moly coated bullets, should I just shoot and clean my gun as normal or remove the moly from the bullets before I shoot them?
 
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I was just about to experiment with moly coating after reading the article in the bulletin 2 days ago. I think now that I will stick with naked bullets
You are smart. I used Moly in several rifles and will *NEVER* use it again. It builds up in the throat and is extremely hard to get out once built up. It just doesn't have the heat tolerance for rifles. I exclusively use HBN now.
 
You are smart. I used Moly in several rifles and will *NEVER* use it again. It builds up in the throat and is extremely hard to get out once built up. It just doesn't have the heat tolerance for rifles. I exclusively use HBN now.
I am going to go ahead and try some. Has to be some benefit. Not going all in yet
 

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