What caused this to happen?

[USGI]

I just looked at some good cases (45 ACP) that I picked up in the same spot that day. They all have small "bright" areas to both sides of the firing pin strikes. A couple of those cases were nickel plated Hornady and have about the same amount of tarnishing on them - been there on the ground awhile. Do you think a 1911 .45 extractor would "catch" and hold on a .40 case like you described? Thanks! - Bob

[milboltnut]

Looks like a 40 fired in a 45ACP.

IF you read the post he said he found parts of the cylinder on the ground....

[WarPig1976]

IF you read the post he said he found parts of the cylinder on the ground....

In the past, for unknown reasons. Unrelated to firing .40 in a .45 chamber.

[Skip]

I found this many years ago. I believe a 5.56 was fired in an 7.62 AK.

[CINDERS]

Now thats a real bizarre one Skip...

[browningautorifle]

I believe a 5.56 was fired in an 7.62 AK.

Maybe...how does it measure up against a 7.62 x 51?

[Bruce_in_Oz]

Another one is "9mm confusion".

Saw an interesting example of that the other day. A 9 x 21 case that was sporting a "belt". Other clue was the faint parallel lines along the case.

Best bet: Somebody with an MP5 got hold of the wrong ammo and gave it a whirl in the "work gun".

Theoretically, it shouldn't fire "out of battery", however.....

[Skip]

Maybe...how does it measure up against a 7.62 x 51?

I know longer have the spent shell.

[browningautorifle]

I know a man that collects those too...

[CINDERS]

hhmmmm wonder who that bower bird would be........................!