Strange mark on side of brass case.

C

CSHammond

New member
I was scrounging for brass one day and came upon these .380 casings. I assume there is some kind of imperfection in the chamber of whatever gun these were shot from, but can anyone tell me if it is something that is, or isn't supposed to be there. I would think the latter since I would think it would reduce the life of the case for reloading.

Just curious.
 

Attachments

  • 0902160007.JPG
    0902160007.JPG
    202.6 KB · Views: 209
That is a strange one it's almost like the chamber had a hole in it. If anything I would say was bored out to far for the rear sight if it comes out when you resize them they should be OK to reload:)
 
case damage

I'd be inspecting the chamber of the gun that was fired in. The rear sight isn't mounted on the barrel. I would not reload a case with that kind of deformity.
 
The brass is hitting something on the way out, all of them do it, some, like yours more then others, somethng we use to look for in firearm investigation.

To find out what, take apart the gun, remove the recoil spring, re-assemble it, use EMPTY BRASS. Put the brass in the chamber, and slowly pull the slide back and as the brass comes out you should be able to see where its hitting.

Looking at your brass, its uniform, and severe, should be easy to find the culpert.
 
There have been some pistols that were blowback, but chambered for powerful rounds and therefore had some sort of 'fluting' or ridges in the chamber. That would slow down the extraction a bit and make the slide not move quite so fast.

I have this vague memory (most of mine are vague these days) that the Savage autoloaders from the very early 1900's had that feature. Anybody know if I am right?

And I think that just maybe this is that sort of design, to hold the brass in a moment longer. It looks like the brass was pushed into a dimple inside the chamber.

Bart Noir
 
I've seen something "sort-of" like that though it was more of a drag-furrow than a dimple like you see. The case I saw was a fracture in the chamber where a sliver of metal had broken off and fallen out.

Interestingly enough the barrel/chamber wasn't actually cracked all the way through and the firearm worked fine. I imagine it would have eventually blown out had we not noticed the brass and inspected the gun to see what the heck was going on.
 
From the picture, it looks like an actual bulge, not an indent like it hit something on the way out. Chamber looks like it has a defect.
 
Those cases were fired in a gun with pressure testing equipment attatched. There actually is a hole in the chamber where the strain gauge goes. I have some that were fired in a shotgun at the Remington factory that they sent me by mistake. When I opened the carton and saw them I new at once what it was and called them. They apologized profusely and sent me another carton-with the same thing inside!! I won't use their hulls for reloading a shotgun anymore.:rolleyes:
 
You must log in or register to reply here.
Back
Top