Anyone know what this is?

[BloodEclipse]

I had a coworker bring this into me at work to see if I knew what it was. Someone he knows found it in a parking lot. The case width is .462 and the length is 2.630
So what is it?

 

[snuffy33]

Looks like a blank. Cal unknown. What's the headstamp?

 

[BloodEclipse]

Headstamp is LC 86 or 98 not sure which way to read it. 86 with the LC above it. 98 if reading the LC and numbers by turning case counterclockwise.

 

[bulletsmith]

Grenade launching blank?

 

[BloodEclipse]

The neck looked smaller than .22. I didn't have him caliper it though.

 

[BloodEclipse]

Never thought about it being a blank but that sure seems to be what it is. I found this image online

 

[Fargo]

7.62 NATO blank based off your case width measurement.

I used to collect them by hundreds as a Marine Corps brat.

 

[oldpink]

Grenade launching blank?

Bingo
If it were an ordinary blank, the case mouth would be crimped instead, and the brass wouldn't extend out that far into the chamber..

 

[Mgderf]

Still has the potential to cause harm, blank or not.

 

[ScouT6a]

That is a 7.62 x 51 blank called an M82. It was designed for use in the M60 machine gun because the star crimped blanks had a bad tendency to jam in the M60.
It was not designed to fire grenades. The double tapered, bottle nose neck is what identifies the M82.
I have a few hundred of these in belts on M13 links.

 

[bulletsmith]

That is a 7.62 x 51 blank called an M82. It was designed for use in the M60 machine gun because the star crimped blanks had a bad tendency to jam in the M60.
It was not designed to fire grenades. The double tapered, bottle nose neck is what identifies the M82.
I have a few hundred of these in belts on M13 links.

Aww, I thought I won something.

 

[Hawkwind2112]

That is a 7.62 x 51 blank called an M82. It was designed for use in the M60 machine gun because the star crimped blanks had a bad tendency to jam in the M60.
It was not designed to fire grenades. The double tapered, bottle nose neck is what identifies the M82.
I have a few hundred of these in belts on M13 links.

I would agree. I had a large belt of those same M60 machine gun blanks displayed for quite some time.

 

[Fargo]

I would agree. I had a large belt of those same M60 machine gun blanks displayed for quite some time.

I had such a belt as a kid, painstakingly put together from blank casings and links collected while hiking through training areas on Camp Pendleton. It did lend an element of instant badassery during the neighborhood war games.