??? On JB non-embedding bore cleaning compound

BOBTAILS

BOBTAILS

Active member
I've never used the stuff before but I had a guy at work say that it can be used on a rough factory bore like a savage or something. Smooth it out and it will collect less copper . Have any of you ever tried this or know if it would work? I have a Savage practically new and it's a copper mine .
 
JB is excellent for tough copper removal. Have used it after big HP rifle matches (where 300+ rounds fired) to speed up cleaning chores.

It has a pretty fine abrasive compound in it so not sure how much bore polishing it would do, but I do think it would speed up your break-in by preventing any copper buildup. Suspect it would take an enormous amount of elbow grease for JB alone to smooth up a rough barrel, however.

Have also used in on smallbore target rifles to prevent lead buildup. Always used a good bore guide and cleaned thoroughly w/Hoppe's or CLP afterwards to remove any stray abrasives from bore.

Regards,
hm
 
So it might help it not be such of a copper mine? If I reading you correctly. I just don't want to hurt the barrel.
 
Bobtails, if it is a copper mine, don't play around. Put the JB on a plastic brush and clean with it this way for 600 rounds, it will smooth out a little bit.

Another product that is similar to JB is the Montana Extreme copper cream, which is what you would imagine JB suspended in oil. The Copper cream is real easy to use on the plastic brushes.

If you would like to speed the process up a little, get some Flitz. Saturate 5 patches with the Flitz, and short stroke the patches in the barrel back and forth. This does lap the barrel a little. Fitz is farily aggressive, so don't overdo this at all. There is another product on the market Called Rem Clean if you can find it. This Rem Clean has 5 micron aluminum oxide in it that will really lap a barrel. I would use this stuf once, and once only. Use the Rem clean on a plastic brush, and when you are done, throw the brush away. Rem Clean is very aggressive.

Montana Extreme Copper killer is the most aggressive copper removing agent that I have every used, and it is an oil based product.

Good luck
 
I knew an old...and very good....gunsmith that swore by the stuff for his competition pistols....he gave me some to try and revive a shot out 17 barrel.....didn't work.....
 
I have the barrel totally clean. I'm just wanting to use it to smooth out the barrel some not necessarily lap it. Just help it.
 
I don't really think it'll hurt anything.....give it a try.....in my case we were thinking it might be copper fouled but the smiths bore scope didn't fit 17's so he suggested trying the Bore Past.....it turned out that the barrel was just worn out though.....I've heard internet gossip about it being abrasive enough to remove carbon rings in the throat but that was the internet sooooo......luck....
 
I've had pretty good luck with a bore mop on a drill motor using JB's and a little kroil to remove carbon rings out of a throat... I may have just got lucky thou...
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If that barrel is a genuine A1 copper fouler fire lapping is probably your best bet. It will smooth them up but at the cost of throat length.
 
If the barrel really coppers that badly, I would put it on a bore mop and stroke back and forth about 60 times, particularly in the area just forward of the chamber.

I use JB a lot, but it won't exactly lap a barrel. It will get rid of copper that's super stuck though.

Overnight application of Wipeout is my new favorite cleaning method. I would suggest knocking the carbon loose first though.
 
Rob: Ben had a rough Savage .204. (Opened up after 20 to 25 rounds.) To their credit, they rebarrelled it for him.
 
I use JB & montanna copper cream a lot for getting the insides clean.
I wet my rag w/wipeout then slop JB on it w/my fingers and run it at least 10-20x or more and change it when black. I have yet to see it "polish" any of my bores, but it gets copper/carbon out.
I use a bronze brush w/0000 steel wool on it then smack JB or montanna extreme into it, that works better that any plastic brush and gets it good.
I have yet to "ruin" (another myth) any of may barrels doing it my way.
 
At one time I had 3 Savage rifles and they all had the same problem with a rough bore and hard to clean, but they shot great, I tried the Wheeler bore lapping kit which helped a lot with cleaning and no loss of accuracy. I had a gun built one time and the smith gave instructions to use JB and a solvent for barrel break in as follows, ( shoot 3-5 rounds clean with solvent then 10 strokes with JB on a patch and clean again with solvent ) I did this with the first 50 rounds. The gun was easy to clean and accuracy was excellent. I use JB on all new guns before even shooting them, I clean my rifles about every 20 rounds then once a year they get a good cleaning with JB, I have never had a loss of accuracy with JB in any of my guns.
It says right on the jar that it is non-embedding and for removal of lead, metal, powder fouling.
 
JB Bore Cleaner will not lap a barrel. JB makes a product called JB Bore Bright that is a bore polish. It will make the bore shine and it will polish it to a very high almost chrome like finish {that is what it looks like with a borescope anyways}. But I have never had it stop or reduce copper fouling, so I quit using the Bore Bright stuff. I am not too sure you want a bore finish that is so smooth it looks like chrome anyway. Usually, if I just keep the bore clean with the JB Bore Cleaner and keep shooting it eventually it will break in and stop. I have had a few that didn't and they were replaced.
 


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