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Howdy,

This may be a dumb idea ...but....Can I substitue auto rubbing compund for JB Bore Cleaner? I've got a new Pietta cap and ball revolver and want to clean up the bore and remove tooling marks etc. I'm cheap and this seems like a possible expediant.
 

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If cleaning up tool marks, and rough spots in the bore is your intention, using either auto rubbing compound or JB Bore Paste is a hard way to go.

Professional bore lapping is done with silicon carbide or carborundum abrasive powder which even in the finest grade, is much, much more abrasive than the polishing compounds.

It won't hurt to try it anyway. When I was in military competitive shooting, we used to use Brasso brass polish for "breaking in" new barrels to make them smoother shooting.
 

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Oh, just buy the JB. A jar'll last you about 30 years anyway and you'll find other things to do with it as well.

I just opened my 2nd jar after 25 years of service rifle, bullseye, IPSC, PPC, etc.

Redial
 

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One issue with what ever you use to smooth out the bores is that you want to make sure it is "non-embedding" compound which the JB is.

Otherwise what you end up with is a grit embedded in the rifling which will have the opposite effect of what you are trying to acheve.

Typically lapping is that is done by hand is done with a lead slug that can be expanded or by shooting bullets that have been coated with the compound using VERY reduced loads.

Personally, I have had a few Pietta over the years, just shoot them and have fun. The return for your efforts of "smoothing" out the barrels will be next to nill. You will get more for your money changing out the springs and cleaning up the actions (if they '58 Rem. Copies)... Don't change the spring in the colt copies as you will end up with cap fagments in the action & get real frustrated real quick.

Good luck...
DonT
 
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