[Marshall]

Well,

For the first time in my 30yrs years of guns I finally had brass on six .45 caliber rounds in my Model 25 dissolve and gum up in the chambers. Luckily it had only been about 4 weeks since I cleaned my guns when I noticed it so they didn't sit in there forever. I guess too much Hoppes No.9 left in the cylinders. I could have sworn I swabbed em out with a dry patch, guess I didn't.

I cleaned it again with Hoppes, a brass brush and swab, they shine like always now. Word....don't ever leave rounds in the chambers with damp solvent. :eek:

[perception]

Wow, never even thought of that happening before.

[Vern Humphrey]

Your problem is obvious. A case is part of a cartridge. A casing is part of a sausage. Sausages are greasy. :neener:

[nbkky71]

Ammonia is the only thing that I've seen dissolve which will dissolve brass.

[mete]

Ammonia is used in cleaners to remove copper from the jacketing .Brass is a copper /zinc alloy .Brass will then also be attacked by ammonia !!! The claeners should be removed after use.

[charby]

When I get in a hurry while cleaning my GP-100 (sits in my nightstand when not at the range) and forget to swab out the cylinders after a cleaning with Hoppes my copper jackets will start to get green goo on them. If I swab out the cylinder with a gun oil (Sheath) after wards I don't have this problem.

My SD rounds are .357 158 Speer Gold Dots, of course we all know these come in nickle plated cases but I haven't yet seen the cases corrode.

Charby