cylinder burns?

[barnabus]

can someone tell me why after 200 rounds each cylinder shows these burn marks that have changed the finish.loads are less than mid-range in power level.is this normal on blued finish revolvers?

https://i.imgur.com/a3XIN6F.jpg

[flyingmonkey35]

The gun is heat finished buling. This is expected.



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[PWS]

I'm no expert but figured it was the result of hot, high pressure gases full of burnt and unburnt lube, powder, bullet metal etc getting blown onto and into the surface.

Funny thing, when I was teaching myself how to chamber rifle barrels, I'd shorten the breech end of a Remington take-off, recut a new chamber and use a light cast bullet load to check my work. Within 20 rounds, the throats in those sectioned rifle barrels were blackened exactly like the cylinder face on a revolver.

Solvents intended for cleaning carbon from ARs usually do a good job on cleaning cylinders. Not sure what they'll do to bluing though!

[Walks]

You should find a powder mark on the cylinder flutes too.
Easily seen on a stainless or nickel revolver.

When I shot Cowboy, my Friends both shot STS Vaquero's, 5 1/2" bbl in .45Colt. By the time the match ( 10-12 stages) was over, all their revolvers showed burn marks on cylinder faces & flutes. You have to have a special cloth to clean off the burn marks on the cylinder faces. Brownell's sells them.

[Larry Gibson]

Looks more like holster wear to me.

[barnabus]

You should find a powder mark on the cylinder flutes too.
Easily seen on a stainless or nickel revolver.

When I shot Cowboy, my Friends both shot STS Vaquero's, 5 1/2" bbl in .45Colt. By the time the match ( 10-12 stages) was over, all their revolvers showed burn marks on cylinder faces & flutes. You have to have a special cloth to clean off the burn marks on the cylinder faces. Brownell's sells them.
I’m not concerned with the cylinder face as it is fine. I’ve tried everything to get it off and nothing is removing it. It is not layered it’s like the bluing is scorched.

[DougGuy]

If it was mine I would just call it "Character."

[Plate plinker]

Same as Douguy.

I say you want to shoot your guns or put them in a beauty pageant. Working guns will become “dirty”.

[megasupermagnum]

I had that really bad, worse than that, on a S&W last year. After a bit of research, it has more to do with the shape of the top strap than anything. None of my Ruger double actions show wear after 200 rounds. Their top strap is as-cast on the bottom. Maybe the rougher top strap helps?

I would say it's normal, there's not much you can do about it.

[Earlwb]

There is a lot of high pressure hot gasses coming out at the tiny gap between the cylinder and the barrel. It would start to stain and or remove the bluing quite easily. When you look at the slow motion videos you can see it quite well. It may be the gap is too large though. Thus allowing too much gasses out in the gap. Anyway, it is why you keep your hand and fingers away from the front od a revoilver, as it will flame cut the fingers right off.

[str8wal]

If it was mine I would just call it "Character."

What he said ^^^

[barnabus]

Same as Douguy.

I say you want to shoot your guns or put them in a beauty pageant. Working guns will become “dirty”.

good lord read the post before posting non sense.the gun is not dirty. smh

[Plate plinker]

good lord read the post before posting non sense.the gun is not dirty. smh

Okay try not dirty. Let’s change “dirty” to not new.

[contender1]

Looking at the picture, and your description, I have a few questions.
You said; "each cylinder shows these burn marks." Are you talking about the CHAMBERS, or the frame in front of the single cylinder?
The gun appears to be Uberti or a clone. It's not a Ruger from what I can see. Is it?
The frame, in front of the cylinder appears to have a color case type finis, that is often done at the factory or by custom work.
By your post,, I'm ASSUMING you mean the part of the one cylinder, in between the flutes,, that has a forward section that has a "sorta half moon dull appearance." Is this correct?

If all my assumptions are correct,,, then there are a few possible explanations.
As noted above, it could be an excessive cylinder/barrel gap.
It could be the blueing process used by the manufacturer wasn't a good method, or improperly done.
It could be wear from a holster as mentioned, but usually that appears as a more "shiny" area.
You mentioned a mid-range load,, but if you are using a hotter, or faster burning powder, it could be part of the problem.

Mentioned above was a reference to a cloth used to clean STAINLESS guns. Do NOT use them on a blued gun. It WILL remove the blueing.

If all else fails, why not contact the manufacturer about your concerns?

[osteodoc08]

Thus allowing too much gasses out in the gap. Anyway, it is why you keep your hand and fingers away from the front od a revoilver, as it will flame cut the fingers right off.

Had a guy in my ER who did this with a 460 Smith while taking a shot at a deer. Turned his palm into hamburger. It looked like an M80 went off in his hand. Lots of skin grafting and plastics and he still had a mean scar limiting his hand movement last I saw him. Y’all be careful.

[lar45]

I think that the Ubertis use some kind of bake on laquer finish or something like it to make it look like it was case color finished. The same with the blueing like finish. I have a Cimmaron Bisley target model and it has some splotches on the blueing that look like the finish has just been disolved.

[shooting on a shoestring]

I have a New Model Single Six that did that with soft boolits. It got lead deposited in the same place. I hardened up the boolits and then the deposits began to fade and have almost gone away now.

[lar45]

I don't know if this applies to your revolver or not, but...
I picked up a Cimmaron Bisley Target in 45 Colt that had some splotches in the finish.
To me it looks like some solvent got on it and ate the finish off.

http://www.lsstuff.com/pics/guns/cimmaron/cimmaron-01.jpg

http://www.lsstuff.com/pics/guns/cimmaron/cimmaron-02.jpg

http://www.lsstuff.com/pics/guns/cimmaron/cimmaron-03.jpg

http://www.lsstuff.com/pics/guns/cimmaron/cimmaron-04.jpg

This is the OPs gun.
If this is the problem, then I agree with above that it looks like holster wear.
http://www.lsstuff.com/pics/guns/cimmaron/finish-01.jpg

If this is the problem, then I think that it may have something to do with the finish that they apply isn't very durable and susceptible to damage from solvents or???
http://www.lsstuff.com/pics/guns/cimmaron/finish-02.jpg

[barnabus]

my gun has never been in a holster.its brand new less than two weeks old with two range trips and 200 rounds down the pipe.its thin bluing.

[Froogal]

my gun has never been in a holster.its brand new less than two weeks old with two range trips and 200 rounds down the pipe.its thin bluing.

IF it is a Cimarron (you didn't specify) then you need to read the manual that came with it. Cimarron puts there own finish on. It is not bluing, and they caution against using any kind of re-bluing kit as it will damage the original finish.