I just got some JB compound at the advice of the guy that owns the shop I deal at. He made it sound like this stuff worked with only a few patches. I have done the process about 10 times on my chrome lined Bushmaster barrel and it still comes out black after only 3 pass's with the JB's. Useing FP-10 it comes out clean. Is the JB's getting out that much stuff the FP-10 leaves behind? How many times should I expect to repeat this till it is actually clean?

I can only imagine how long this will take with normal steel barrels.

JB is a very very mild abrasive. I know some who just use tooth paste. As such it (the patch)when coated with JB will always turn dark after a few passes. Thats normal. The way to tell if all the fouling is out is to run through some with your normal bore cleaner to clean out the JB and see if your still dirty.

jacobite,

If you have used 3 patches of JB you probably have it realy clean

JB will always be black-no that isn't more carbon residue, JB is just that way.

JB works fast. I use two patches of it, and it cuts out the powder fouling real well. Don't wear your elbow out trying to get clean looking patches. That won't happen with JB

Thanks guys. I would say that my bore must be very clean then as once I run a couple clean patches thru it I can use bore cleaner and they look as good after they come out as before they go in. How often should the JB's be used? I am guessing you don't use this stuff for every day rifle cleaning but rather as an every so often super clean?

Oregon Born,
Thanks for the info. Gotta ask about the Blue Dot loads. Are they reduced target loads? Never heard of anyone using Blue Dot in a rifle?

I use some solvent to pretend I'm softening the fouling then JB for all my cleaning, a couple patched wrapped on the Dewey Jag and I'm done, solvent's just to clean up the bore well after the JB done the work.

Before I had used up to 40 patches, now I use 10...

I always patched a couple of times with kroil/shooterschoice to remove the loose stuff and "lube" the barrel a bit before the JB-onapatch-wrapped-around-a-one-caliber-smaller-brush routine.

Gotta tell you though, I have been using Wipeout and my JB is getting lonely....no worries about pinging the barrel with rods, rods picking up abrasives, etc.

R

[ 10-24-2003, 17:46: Message edited by: rogerinneb ]

If you put a piece of steel in the lathe and spin it fast and run some JB bore paste on it with a small patch, you will see some abrasive action with a microscope. You would be there for hours feeding at hundreds of inches per second, before you could change the diameter of the steel by .001".

So I don't think that JB will open up the groove diameter of the barrel.

I use a few patch's with Kroil, then a few dry patch's, then 3 or 4 soaked with Sweets. I let it sit in the barrel for 10 to 15 minutes then run another 3 or 4 patch's soaked in Sweets. Repeat until ALL the copper is gone. I then run several patch's soaked in Kroil and then a few dry patch's to dry the bore - if I am going to use it right away. I use a pistol rod with a slotted jag and a large patch to clean out the action after removing the bore guide. I use a teeny tiny drop of STP on each lug, insert the bolt and work it several times. I make sure to wipe any residue off at the muzzle. I use JB Bore Paste only if copper fouling is excessive. Since switching my rifles to using Groove Bullets - that copper foul a lot less - I haven't used JB Bore Paste. I haven't needed to.

Don

Jacobite,

JB is a staple at my house but I can't recall ever using it in a chrome bore - haven't had to!

FWIW, the black junk you're still getting out is mostly JB itself - it gets darker as it breaks down, in my experience.

Between JB and WipeOut, I have little use anymore for bronze brushes!

Redial

What is wipeout and where can I find it?

Jacobite,

Wipeout is a bore foam that works exceptionally well. No brushing is done.

www.paulcousa.com

So far this is the best thing I've tried. No odor to it.

Good Hunting,