Looks like I'm building up some lead inside the cylinder charge holes, just before the throats. What do you guys think?

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I’d say that’s pretty normal, and should come out with a good cleaning.

__________________
“What you got, ain’t new.”

Looks like what I'd expect to see from a gun that shoots cast bullets. That'll clean up without much trouble. Those carbon rings...not so easy.

I get some buildup shooting my .38 handloads in my .357's....clean it out, good to go.......

Ha! That was after the clean. I've been shooting alot of coated. I guess maybe on the next cleaning I'll run a brush in there. It may have been there for a while. I guess the lighting was just right for me to see...
I dont get ammo bind, yet.

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Hoppes sells these tornado brushes for about three bucks. I've found them to work better for getting that tough stuff out than regular bristle brushes.

__________________
“What you got, ain’t new.”

That looks like it might work.
Thanks.

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You may wish to consider use of a Lewis Lead Remover or copper
"ChorBoy" wrapped around a bronze or copper brush to remove this lead build-up. I have used both with success.

I try to use brushes whose composition is "softer" than the gun-metal I am seeking to clean so as to avoid premature wear/damage.

JM2c.

JPJ

My normal routine for cleaning my fiance's 357 , shooting 38 specials is to soak several patch's either with Kroil or Marvel Mystery Oil , which is handy at the moment and run them through the charge holes . I let that sit for a few minutes while cleaning rest of the gun . Then I grab a bore brush and a few passes through each charge hole and the cylinders are bright clean and no debris . Maybe this will help you , Regards, Paul

Looks like a little carbon buildup. A little bit of elbow grease and the correct cleaning supplies should clean it up.

If your shooting coated bullets there should not be a lead build up there. That part of the cylinder is subjected to the most intense part of the firing sequence. The cylinder throats should remain clean since each successive bullet cleans out anything left from the prior bullet.

If you own and shoot a Revolver you MUST own and use a Lewis Lead Remover! Brownell's sells them in various calibers.

Not only do they clean the Charge Holes but they also clean the Barrel and Forcing Cone quite well and rapidly.

The best option for cleaning chambers are Brownell's bronze chamber brushes.

These are not only larger then a bore brush, they're made of an extra stiff bristle.
These work far better then using a large caliber bore brush.
These are faster and safe to use.

Don't buy stainless chamber brushes, these can damage the chambers.

BROWNELLS BRONZE RIFLE/PISTOL CHAMBER BRUSHES | Brownells

A Lewis Lead Remover is the friend of anyone who shoots lead bullets. It is much safer than any stainless steel brush, even the stainless tornado brushes. An alternative would be to wrap pure copper Chore Boy strips around a bonze bore brush and use that to remove the lead.

Brass / bronze .40 or .45 brush chucked into a drill.

MUST remove the cylinder first!

__________________
Richard

I just did a 45 brass brush. It cleaned up well! Didnt remove cylinder. Just spun it with an extension by hand. Patches were coming out black.
I wonder if it isnt lead, is it just fouling? Who knows. I've found lead in the darndest of places!


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Thank you all for suggestions! I dont think I cleaned this cylinder with a brass brush ever. Only has 4000 rounds.....

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Normal issue to deal with and usually more pronounced when shooting shorter cases.
Wet it down with Kroil, let it sit then use some ChoreBoy copper wrapped on a bronze brush. Repeat if necessary. Works well with minimal effort.

Just get this kit. Works great and it’s cheap.

Engine Brush Kit 20 Pc