Yep, has a really dirty reputation.I've never bought Monarch, but I know a few that have and they universally hated it. Apparently they have the same quality standards as Kamala Harris' sex life.
I hear people say even the Monarch brass is dirty.Steel case leaves a filthy mess.
On firing brass cases expand slightly to seal the chamber. As the chamber pressures drop the case contract allowing extraction.
Steel cases do not expand. Powder residue gets blown back along the case back into the bolt area.
Very light loads in brass (cowboy fart level loads for example) does the same thing.
Where in TX are you located? Someone nearby might have good calipers that you could use to measure the casings.No, I don't. Like I said, I've never had this issue before.
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San Angelo area. But I honestly think that it's probably an issue relating to the age of the gun. It's an old SAA Peacemaker, and even the ACP cylinder for it was made long before steel case ammo was even a thing. I think it's just going to be a matter of getting some brass case for it, and everything should be good. Or even get some .45 LC and pop the other cylinder in it. The LC is more expensive (may as well stuff dollar bills in the cylinder) but it would be nice to have.Where in TX are you located? Someone nearby might have good calipers that you could use to measure the casings.
Could be a bad batch of ammo, could be that your gun just plain doesn't like lacquered casings.