J-B Non-Embedding Bore Cleaning Compound

Wwoowww. I thought I kept my guns meticulously clean. This stuff just laughed at me. This rifle has 3-4k rounds through it. I ran a bore snake and bore cleaner after every range trip and a few times I really scrubbed it with with a bore brush and bore cleaner and copper remover etc. Used multiple different name brand cleaners too. Thought there was no way this stuff would remove any more build up. There couldn't be anything left.... right? Ha. 40 patches later I still havent gotten a plain white patch! This stuff is serious. Gets stuff deep in the rifling grooves u didn't even know was there. Holy crap.

Great product, easy to use. The first photo is pre-cleaning at the chamber end of the barrel. Second is post cleaning around the same area (disregard the little cracks). The third photo is further up the barrel which was not quite as dirty, really cleaned/polished well. Mind you that it is not magic and with a few swipes, all gone. Especially with a barrel with heavy deposits like this you will need to work at it. Cleaning this firearm took 45-60 minutes.

I used JB Compound over 20 years ago. If you follow the directions, they guarantee a one half inch tighter group at 100 yards. It basically gets the fouling out of the barrel. It 'breaks in' the barrel of new guns and brings back to life the barrel of old ones. I know some will faint when they see this, but it is the ONLY time you will ever go bore first when applying initially. Get a GOOD one piece coated rod and apply a good helping of JB compound carefully down the bore. Punch out through the chamber, removing the attachment each time. It'll take 30+ passes to get the bore completely clean, with the JB compound in the barrel. Now its time for the 'break in'.1 - Fire your first round, take the bolt out and punch a patch completely clean for each round you fire for the first 20 rounds. This is time consuming but it is well worth it. After 20 rds, apply JB Compound through the bore once more, following the initial step. The end result is 1/2 in tighter group at 100 yards. I did this with a M40A1, Savage FP110 Tactical heavy barrel, and a Mcmillan .308.The stuff actually works! Your accuracy is going to increase dramatically.

This is my second jar of J-B. I was very impressed with the first and made the mistake of sharing my opinion with my fellow shooters. After a week of high volume shooting, and by high volume, I mean north of 3000 rounds of fairly hot ammo with cleaning every 30 - 35 rounds, 90% of it had been used. It is great for cleaning particularly tough copper deposition in the bore without the risk to the bore that comes with some of the well known copper-removing solvents. It is easy to use, will not harm the barrel, and allows me to use far fewer patches to get a clean, bright, copper free barrel. At the same time, I know there will be no change in point of impact nor opening of groups. In a 40 round test I ran on a .223 bolt gun with a stainless barrel, I achieved the level of copper removal I needed with 15 patches using J-B as directed. Without J-B, It took nearly 40 patches to achieve the same results. Following the test, point of impact was right on and the rifle still grouped sub-half MOA. Hence, the second order and this time, I'm not gonna share!

I have a 12 Gauge shotgun handed down to me that had not been used for 30 years. I had cleaned it and fired several boxes of slugs through it, but noticed stubborn fouling due to powder build up about 6 inches from the chamber. Despite brass brushing, bore snakes and conventional cleaning solvents, I could not get the deposits out. I was wondering if someone had been firing steel shot through this barrel 30 years ago, and the barrel is now permanently scarred? So I read a sorts of review on Amazon and found J-B Non-Embedding Bore Compound and gave it a try. I had absolutely nothing to lose. Following the direction on the jar, I started to swab the barrel with the J-B and was astonished at the crud I was getting out of a barrel that I know I had recently cleaned after a day at the range. So I kept at it and also used my brass bore brush in the barrel and with a bit of determined effort, I ended up with a barrel that looks brand new through the entire bore. This stuff works. If your barrel looks like it has run its useful life, try resurrecting it with this J-B first. It sure worked for me.

The magic is real. For all the naysayers who've never used the stuff, and claims it couldn't possibly help, I was equally as skeptical. How could you possibly use an abrasive on your barrel and improve performance without damaging it? I only turned to it as a last resort on a barrel I just couldn't get to shoot, and was going to bin. Well call it magic, the stuff does actually work. The barrel is much improved. I'm flabbergasted, and if I were reading this story I wouldn't have believed it either. Don't know what else to say about that.

You can rub this stuff between your fingers and see it's not abrasive like it has sandy grit in it, but it does (somehow) scour the barrel. I always used Hoppes first to clean the carbon fowling and then Sweets 7.62 to get the copper. I'd leave the Sweets in for 5 minutes and then push patches through. The patches would come out blue and then progressively white. When this JB's arrived, I then used the Hoppes with the JB's next. After I'd use Sweets 7.62, but no longer had blue patches. JB's cleaned all the copper fouling and there's no longer a need for Sweets. JB's would also be excellent for new barrels instead of the shoot once, then clean, shoot again, then clean... If used when the rifle is brand new this will knock down the "burrs" in the barrel and smooth it out without having to shoot.

Really works nice!! Use it between ammo changes while testing loads. Does improve accuracy!

Service better than expected. When a delivery problem occurred, it was immediately addressed, and taken care of professionally. Highly recommended.

Used with VFG bore pellets and could feel the product cleaning and polishing the bore. Good at removing copper fouling too. I think the small jar will last years. Now it's part of my regular cleaning routine

Super I use it for a better cleaning of bore rifles...I have not use a bore scope yet to confirm it's effectiveness.Morev to followJ.B

Great stuff easy to use.