Brownells J-B Non-Embedding Bore Cleaning Compound Gun Barrel Cleaner Solvent Oil-Paste, Gunsmithing Tools Maintenance Cleaning Supplies, 2 oz. (57g) Jar

The J-B Non-Embedding Bore Cleaning Compound stands as a testament to meticulous firearm care, trusted and relied upon by precision shooters for over four decades. This paste cleaner offers a level of bore cleaning excellence that transcends conventional methods. It effectively and efficiently eliminates lead residue in just three passes, showcasing its remarkable cleaning power without resorting to caustic liquids that might harm the integrity of the rifle bore. What sets this compound apart is its innovative approach to cleaning. The cushioned abrasive action doesn't merely remove residue; it polishes the bore, ensuring a sparkling clean without causing any damage. This meticulous polishing enhances the longevity of the firearm while maintaining the precision necessary for accurate shooting. The 2 oz. jar might seem small, but a little of this compound goes a long way, making it a cost-effective choice for those who value quality and precision in their firearm maintenance routine. For aficionados who demand peak performance from their rifles, the J-B Non-Embedding Bore Cleaning Compound is an indispensable tool. Its proven track record in delivering superior cleaning without compromising the integrity of the bore solidifies its position as a go-to choice for those who value precision, reliability, and the longevity of their firearms.

It was easy to use. It was hard to evaluate the claim regarding accuracy. I felt like my first three shots grouped better but it might also have been less wind and a freshly cleaned barrel.

An excellent product! And not just for the barrel bore...I learned this hack from others where you put it on the slide rails of a handgun and work the slide for several minutes and levels out rough and high spots making for a clean and polished working surface...and without the need for filing! I imagine it would work equally well on barrel lugs and other fitting spots on a barrel but haven't tried it for that yet.

It worked great on a barrel I bought used and it had a lot of buildup in it. I used this to clean it up and polish it.

I have used this product before and love it needed to replace it ran out

I bought some of the stuff to do some polishing/ lapping of rifle barrels. This quantity, while it looks to be small seems like it will last me a lifetime as it doesn't take much to be effective. It worked very well for my use.

i use it to break in a new rifle + i use it on the bolt to smooth the action works really well for me

I’ve tried numerous cleaners and this one removes it all! Takes a little polishing but there isn’t anything left afterwards. I have a boroscope and most other cleaners leave visual carbon behind.

had heavy lead fouling in my bore, a caked on layer, that took a lot of work to remove, used kroil, hoppes 9 and brass brushes with rods attached to my hand drill, after 15 minutes of this the bore was finally clean (at least to my eyes) then I rubbed JB on a patch , wrapped the patch around a nylon bristle brush and into my drill, made a few passes and couldn't believe how much more lead came out after I thought it was clean. I know this isn't the "micro polishing" model but it still seamed to polish my chrome bore. essentially alll those hairline scratches are gone and the inside of my Benelli M4 bore looks like a brand new chrome car rim lol.

This is a great product after removal of cooper n carbon with a solvent this product will help to remove whatever is left in rifle barrel leaving a shiny bore.

Good stuff

Give rifle bore a really good scrubbing... never seen a product do as food a job!

I've used JB Blue for years and Its a good product for heavily used,poorly cleaned rifle barrels that need some extra 'oomph' to clean out heavy fouling or copper. However, as it is mechanically abrasive, misusing it can do damage so read up on it's use thoroughly & use it with caution and common sense. Recommended.