Brush Research 00049 Shotgun Barrel Flex-Hone, Aluminum Oxide, 12 Gauge, 800 Grit (Pack of 1)

I made a mistake and made some shotshell reloads with Pyrodex FFg RS, which is nasty heavy with salts, let gun set for a few weeks, and was heart broken. Disgusting rust spots throughout the entire bore. No bronze brush would touch it. I bought this flex hone, heavy application soak of Ballistol, 30 seconds with an electric drill, pushed a few dry patches throigh, and it looked like the gun was never fired from factory. Absolutely unbelievable. Outstanding results.

I did some work on shotgun chambers. It worked great.

Works great no problems.

Worked great on my 410 chamber.

I shoot a lot of 12ga rounds on trap/skeet. 200+ rounds per shoot is typical.After say 500-600 rounds, restoring the barrel finish back to factory appearance is simply not achievable with current EPA solvents. The modern, far less effective EPA solvents are puny for the removal of organics (plastics).Wad expansion friction coats and tempers the barrel with a thin, super hard lacquer. Older solvents once cleanly removed the lacquer in a cleaning. It takes days if you're lucky enough to access a solvent better than Hoppes #9.Lead residue removal is a wholly different process and typically accomplished with the brass bush. When the lead has been repetitiously filled into typical 200 grit finishes, it's a labor. The heavily used barrel gets tougher to clean.That’s the time for the 400-800 grit Al-oxide hone. A 400-grit is barely discernably different from the 800 finish. An 800 grit delivers the mirror finish you likely expect. The hone wears out more quickly the finer the grit.Where the wad expands just beyond the chamber, the hone slows as it chews through the distinct smell of the hot plastic lacquer. It takes a couple passes to wear through the plastic coating.Honing is messy. I use a heavy oil to lubricate the hone. An 800 grit will remove minute amounts of rougher finish burr. Expect magnetic filings. Honing is a machining operation vice a cleaning. The drill speed at the low 800-1000/rpm is adequate for most of the barrel. I crank it up to melt through the lacquer. A smooth slow action finishes the job.Cleaning tip: 12” hones are too short unless you have a 24” barrel. Pick a hone length that runs the barrel length.Brush Research provides an excellent product.

Quality control is lacking in a lot of gun makers these days that sell to us at low prices. They skip a few steps and one of them is polishing and finishing barrels and chambers. Flex hone does the job and you don't need to be a Smith to do it. All you need is a power drill or even a Dremel will work. Extraction or loading hiccups can be solved with a good polishing with these brushes. I've used them on several calibers and noted big improvements every time. They last a long time too. If you wash them with soap and water after each use extends their lifetime.

Used to refinish a rusted 12 gauge bore. Easy to use and a simple fix for bore problems.

Took 3 orders to get the right brush so check before using! By the time I recieved the correct brush the price had gone up so I was charged more....product works well but Amazon is a pain to deal with and only accepts positive reviews.

Tengo una Browning europea vieja. La compré con oxidación/defectos internos de los cañones. En poco rato quedaron impecables