✅ SOLVED Shell casing ID

[vhs07]

What do I have here? A standard .50 cal is on the left and a 3" short
stubby version is on the right. Bic pen for scale . The head stamp
reads L C 6 6. I've never seen the short one before. Any ideas?

 

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[bologna321]

What do I have here? A standard .50 cal is on the left and a 3" short
stubby version is on the right. Bic pen for scale . The head stamp
reads L C 6 6. I've never seen the short one before. Any ideas?
View attachment 1776788 View attachment 1776789

50 cal spotter tracer ?

 

[Tpmetal]

Its a .50 BAT I think?
Edit yeah a spotter round like he said

 

[vhs07]

Thanks guys.

 

[Charlie P. (NY)]

Pretty neat.

Here is the M8C spotter rifle mounted on a M40 Recoilless Rifle.

 

[Anduril]

Pretty neat.

Here is the M8C spotter rifle mounted on a M40 Recoilless Rifle.

View attachment 1776808

Just by looking at that M40, I highly doubt it is truly "recoilless"

 

[ToddsPoint]

LC is Lake City Arsenal. Gary

 

[Charlie P. (NY)]

Just by looking at that M40, I highly doubt it is truly "recoilless"

Oh, they are (were). You just don't want to stand within about 200 ft behind it. They still use the M27 version to trigger avalanches in the Rocky Mountains.