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View Full Version : Moly Coating Pros-Cons??


FullClip
04-01-2004, 05:37 AM
Am confused about all the stuff I read / hear about moly coated bullets. Have a few Weatherbys that seem to copper up pretty quick and are a pain to clean after an afternoon at the gravel pit. I'm not looking for the extra zillion feet per second that some vendors claim, but a little less work at the end of the day would be nice. Also any real affects on accuracy if you go back to non-molly bullets after shooting the coated ones??

kdub
04-01-2004, 12:04 PM
This question has been kicked around quite a bit on the board - you can search the archive files to find a bunch of info.

IMHO - moly can be good/bad, depending on what you want from it. In your case, probably will work pretty well if you are careful with the applications.

No, shooting non-moly bullets in a moly prepped bore is a BAD thing! Don't do it. You'll be depositing coper fouling down on top of the moly and have a real mess on your hands.

If you go to www.brownells.com, they have some good instructions on how to prep a barrel and how to properly coat the bullets. They also sell the products required.

When initially firing moly'd bullets down a prepped bore, you will notice somewhat wild grouping and a velocity loss. After about 40 or so rounds, things start to settle down and the grouping will stabilize. You will have to increase the powder charge to get back to the original velocities.

Once conditioned, the barrel is easier to clean than the original. However, in time lumps will build up in the bore causing erratic grouping and velocities. THEN, the real job begins as you try to remove the moly and other gunk from the bore to restore it to original condition. A reconditioning with the moly prep is again required if you elect to continue with the product.

Personally, I got tired of dealing with the messy stuff that tended to get on everything in the gunroom, had to wear disposable rubber gloves when handling the moly'd bullets, having a tumbler bowl being dedicated to coating the bullets because it was fit for nothing else afterwards, the reconditioning of the bore when buildups occurred (a real chore, believe me).

I'm completely happy now to clean the carbon and copper fouling from the bores and shoot plain ol' jacketed bullets now! :D

FullClip
04-02-2004, 02:09 AM
kdub,
Thanks for the feed back. Sounds like a lot more trouble than it's worth. We use moly for coating turbine bolts and you're right, the stuff gets everywhere. I can make enough of a mess on the loading bench without help. Will stick with the copper jackets and maybe pick up one of those electric bore cleaners.
Thanks again,
FullClip

jb12string
04-05-2004, 06:59 PM
I am by no means an expert on firelapping (there are others here that would know better than i for sure) but i have heard that firelapping can help with major fouling problems