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

Have read about this stuff for years. The rumors are true, cleans consistently and is repeatable. Takes about 5-7 pews to get back to normal after cleaning. Read about it in AB vol.III. Follow Brian’s instructions. My old cleaning process used a different way to clean the barrel. It worked just fine, but took 5-25 pews before it returned to normal. After using both process, they foul at about the same rate, 200ish, with my pews(not spicy). Much happier with this stuff.

Great for Barrel break in cleaning. Great for cleaning stubborn copper fouling. Great for polishing the roughness off a new barrel bore surface.

Excellent product. I used it to clean up and polish the bore and chamber of my 1938 Erma K98. Easy to use and does the job.

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.

Seems to work.

Used this to smooth out bolt action. Works great!

This stuff is pretty expensive for a small bottle but it's worth it. If you want to really clean a bore and receiver, buy this. I guess this little bottle will last a lifetime.

this works great on a fowled barrel a little bit gos a long way last tub i had lasted for years

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.

I have been using JB for as long as I can remember and always will, works great.

Très bon produit.

Very easy to use and works on all conditions be it carbon / copper or lead fouling it JUST WORKS not sure how but who cares. Effort is minimal as well. Used my borescooe to analyze results and proof is in the details.

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.