J-B Compound

[mswill]

Has anyone had any experience with this product? Full name is "J-B Non-Embedding Bore Cleaning Compound" and purports to clean bullet jacket and powder fouling from rifle and pistol bores. Good/bad/indifferent observations welcome.

[Rigby]

A gift from the gods to us shooters! I have used it since the early 80's and wouldn't be without it. It has never harmed the accuracy in any firearm I have used it on, and it works great.

[Kid Sopris]

Yeah ...I have a few jars...They were give aways at SASS Shoots and Shot Show. I use it on nasty bores and after a week long SASS event like End Of Trail or Winter Range and Old West Shootin Raton, New Mexico. Never harmed a land or groove and never affected accuracy.

[mswill]

Thanks for your time folks....will give it a try.

[Boge]

I used to use it but that was before the advent of the new super carbon cutting cleaners like MPRO7 & Slip "Carbon Killer" which are non-toxic. Also, it depends on what you are trying to remove. Copper doesn't really fuse with steel until you hit circa. 3,000 fps, i.e., high powered rifles. For handguns and bad leading THE fastest way to remove lead that I've found is to spray MPRO7 and let it sit for 10 mins. and then use tightly wound bronze wool on a smaller brush. Five to ten passes & the lead comes out in streaks. Even faster than a Lewis Lead Remover IMO.

[john323]

I have used it for quite a few years and love it.Will not harm the bore.

[bmcgilvray]

I've long kept it on hand for occasional use on a badly fouled bore. It can rejuvenate a badly fouled rifle barrel and get it to group well again. It's something for use on a used rifle or handgun to get the bore in shape for use. JB Bore Cleaner isn't a product I see as required for regular use though. Once the bore is "restored to health" so to speak it's much easier to keep it clean if it is tended to after each shooting use.

JB Bore cleaner is nice for an initial use on an old handgun that has a frosted or pitted bore from firing corrosively primed cartridges. It can make them look a little less shabby. Only thing is, a fun afternoon session shooting lead bullets through a rough old bore and the leading returns.

When I was a young buck loan officer at a bank I worked a miracle on a bank board member's Winchester Model 88 .284 Winchester. He was claiming it would no longer shoot and I asked to see it. The bore was thick with bright green gunk. We took it to the range and it gave about 12 inch groups from the bench at 100 yards, under its 2X8 Bausch & Lomb Balvar scope. I took it home and cleaned it with JB Bore cleaner then alternately soaked it and swabbed it for a few days with Hoppe's No. 9 and it looked sparkling bright. Another trip to the range with some of the same factory ammunition gave solid 1 1/2-inch groups. An additional brass brush scrubbing and Hoppe's soak and swab out and I gave it back to him ready for hunting. I'd have loved to play with a .284 Winchester as it looks like a really effective cartridge.

While it claims to not harm a bore I don't see JB Bore cleaner as a product to be used for regular cleaning. I have one particular .220 Swift that I've managed to eek out a little over 2000 rounds through its bore and it's shooting better than ever. It's always been a fouling-prone barrel but I don't believe I'd have gotten this much mileage out of it if I'd have applied JB after each shooting session. I bought the rifle used in 1987 and gave it the JB treatment per the instructions on the jar. Since then I keep the fouling out with Sweet's 7.62 bore cleaner.

[ehsa]

its good stuff

[mswill]

Appreciate the responses. Seems Boge and bmcgilvray have ESP'ed my reason for asking. One gun is a used .243 that I've had for probably 30 years. My reloads back then were running 3300-3600fps..... no idea what previous owner ran thru it. Am starting to reload again and want to "restore to health" as much as possible.

The other is a family SAA (1919). I have no earthly idea what has been down its barrel. Since it is a long way from bright and shiny, perhaps a J-B treatment might help. I do shoot it occasionally with some mild loads.

Thanks again.