Brownells J-B Bore Bright ガンクリーナー 溶剤オイルペースト、ガンスミシングツールメンテナンスクリーニング用品、2オンス(57g)ジャー

Great bore polish and cleaner. Been using this product since 1991…. It’s the Good Stuff!

This stuff can work magic on heavily fouled, rusted, or pitted barrels. For light duty, a cleaning rod will work. For heavy duty on a badly fouled/rusted/pitted barrel, get a drill.

This is hands down the best polisher I have or will ever need to use. Coupled with the blue J-B cleaner it the best 1/2 punch for any barrel no matter what its condition. Just make sure you pack it on if needed and pass the brush 20-30 times. This thing will polish your barrel to a mirror finish. Pricey but you use less to get a faster/better result.

Super good product for those who really want to care for your barrels. This product preferred by bench rest shooters and snipers for enhanced accuracy

So my childhood .22 stopped ejecting rounds about 10 years ago. I replaced the extractor and cleaned it I don’t know how many times. It had sat in the back safe for too many years. It was time to fix it or trash it. I red online that this stuff takes out hardened carbon build up and it can mirror polish the bore. So I said what do I have to loose. It was right on all occasions. A YouTube video said to first clean the bore normally then run “Kroil” penetrating oil through it and let it set over night. Around noon the next day I ran the JB Bore Bright through it and was shocked. I was getting mostly white bore patches the night before and now I was getting black nasty patches coming out. It was amazing that that much gunk was left over from a normal cleaning. I looked down the breach and could see the floor reflecting in the end of the bore. Now everything functions normally and I am so happy.