J-B

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Chief_10Beers

Blackhawk
Joined
Mar 15, 2009
Messages
943
Location
Kenly, North Carolina
Good, Bad, Indifferent? Works as advertise? Always on the lookout for something different, at least to me...............

l_083065025_1.jpg
 

DGW1949

Hunter
Joined
Apr 10, 2005
Messages
3,638
Location
Texas
Back when I was a regular match shooter, I used it ever so often...maybe 3-4 times a year. It works perty good. Some folks are afraid of it because it is a mild abrasive, but my rifle(s) never had any ill effects from it at all.

Hope this helps.

DGW
 

GP100man

Buckeye
Joined
Sep 13, 2006
Messages
1,386
Location
Tabor City, NC.
I used to take it & put it on a brush to remove the 38 "crude ring" on 357 revolvers , no ill effects that i could tell measurin or shootin!!

Flitz is `bout the same.
 

Enigma

Hunter
Joined
Apr 17, 2002
Messages
2,049
Location
Houston metro area, TX
Krieger Rifle Barrels says it doesn't hurt their barrels; that's good enough for me:

Q: Will a paste-type bore cleaner such as J.B. or Rem Clean hurt a barrel during cleaning?

A: No. There is nothing that we can find that shows that it will harm the barrel provided you use a rod guide and refrain from exiting the muzzle.

http://www.kriegerbarrels.com/FAQ-c1246-wp3352.htm

They will, however, void your warranty if you Fire-Lap one of their barrels - as will every barrel maker that I'm aware of.
 

RJ556

Buckeye
Joined
Nov 28, 2009
Messages
1,070
Location
Focsani, Romania
I have used it occasionally on rough bores. The "abrasive " is so mild that it would take one hell of a lot of scrubbing with it to do any damage to a barrel. Ofcourse you should always take the normal precautions for muzzle cleaning rod wear.
 

Rodfac

Blackhawk
Joined
Mar 11, 2009
Messages
691
Location
Kentucky
I use it when cleaning a copper jacket fouled barrel prior to testing cast lead bullet loads. It works fine but IT IS AN ABRASIVE...a little goes a long way.

In use...WATCH THE MUZZLE. If you allow the patch or swab coated with J-B to exit the muzzle, you are in effect "sanding" the edge of the rifling there...and that my friend is the #1 cause of barrel wear. Military barrels (the M1, M1 Carbine and any others that were cleaned from the muzzle end) were ruined by the use of steel jointed cleaning rods scraping across the crown. Remember that the rod is coated with J-B as well as the patch or swab and can and will remove metal where ever it touches...the crown or the throat for that matter. Being anal over the muzzle end of any rifled barrel is a good thing.

Guide the rod with your fingers so it doesn't touch the crown, or better yet use a bore guide. You can make your own from a .223 or 25-20 case with the head cut off, slipped over your .22 cal. or .30 cal. dia. Dewey cleaning rod. The bottle neck end of the case slips inside the bore, effectively preventing the rod from touching the muzzle crown. This system works for rifle or pistol, just vary the size of the shell you cut off or drill out to fit inside the muzzle.

When you're done...thoroughly clean out the residue with Hoppe's, Ed's Red or what ever your using for normal cleaning...and don't forget the rod you used. I like Dewey's coated rods and wipe them down after each use.
HTH's Rodfac
 

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