Cylinder won't clean

[gr7070]

There's a ring in each of my cylinder chambers that won't come out. They're about 3/4 down the cylinder towards the muzzle. They're an 1/8" wide.

Its only had 110 rds through it total? What's causing it? Will it be an issue 5000 rds from now?

 

[cp1969]

I think you're seeing the cylinder throat.

 

[gr7070]

So the cylinder is a hair wider towards the muzzle? Ninteresting. I'm brand new to revolvers, hadn't eve shot one in 20 years till recently and never owned one as well.

Thanks.

 

[Dragon88]

I think you're seeing the cylinder throat.

+1. Stop scrubbing away at that it's suppose to be there. Give your revolver a reasonable cleaning, shoot it, enjoy it, and stop worrying about 5000 rounds from now.

 

[HEADKNOCKER]

I made myself a scraper from a spent 357 Brass Case that I drilled the primer pocket out to accept a 8/32 screw & put a nut on the outside & cut the bolt down so I could attache it to a cleaning rod, I then expanded the case & sharpened the inside casemouth with a tapered reamer & now have a great tool for starting the carbon removal process in 357 chambers..
The 686 I was cleaning had saw several hundred rounds of 38spl without the ledge being cleaned & was caked on something fierce.. I spent over two hours on the cylinder soaking it with Hoppes #9 with a Q-Tip & useing my "Tool" then a piece of Bronze Wool/Chore Boy around an old 30cal brush chucked in my cordless drill on slow speed + Lots of Hoppes got it all but spotless, I then followed up with the Brownells Flex Hones to give the chambers a very uniformed crosshatch pattern..
I bet I used 50 patches total..
I was looking down each chamber with an eye loupe with a borelight & could see all the carbon that had built up like a stairstep..
Thought I'd share the Tool made from a spent case..
It realy worked well, Much better than a Bore brush for getting the main burnt on carbon out of the cylinders holes..
Here's a Crappy Pic of it I took while doing the cleaning
Now I gotta make one up in 38 Super for cleaning my 940 after shooting 9mms..
Gary/Hk

 

[jbgoodstok]

Cylinder ring

Consider this - if this is a 44 mag are you shooting 44 specials - could be residue from using a smaller cartridge (which is done all the time)in a longer cylinder - same with 38 in a 357. I think the previous poster is right though - you are seeing the cylinder cartridge rim stop or what ever it is appropriately called. Clean like he said and enjoy - don't use a metal brush too much tho - jb

 

[HEADKNOCKER]

The throat is a big stair step & should be there, the ring behind it your seeing is from shooting shorter cartridges in the longer cylinder...

Maybe even some JB Bore Paste to get it spotless..

 

[Wayne K]

I asked Brownel's tech guys about this. Specifically I was asking which reamer to get to clean out the carbon, as that was noted in one of the gun smithing books I read. I'd come by a couple of 357 revolvers that were pretty loaded up. Brownells said no need for the reamer, just wind a bit of 0000 steel wool around a bore brush, mount the threaded shaft in a drill and zzzaappp. Seemed to work pretty good. Soaked with Kroil first and during. Also I cut a piece of aluminum stock at an angle and used as an inside scraper to knock the heavy stuff down. Read that on a post, probably here. The aluminum can't hurt the cylinder, which is always my first consideration.

 

[pinkymingeo]

When I discovered this stuff Big 45 Frontier Metal Cleaner I put the Lewis Lead Remover and drill away. Cleans most anything out of the bore and cylinder quickly, with no damage.

 

[BUFF]

When I discovered this stuff Big 45 Frontier Metal Cleaner I put the Lewis Lead Remover and drill away. Cleans most anything out of the bore and cylinder quickly, with no damage.

Best stuff I have ever used for cleaning lead and carbon fouling from chambers and barrels. Works great on any rust on the exteriors of guns, too. You can really lean into the scrubbing and not affect the blue.