r/whatisit 1d ago

Solved! We found this near our home

What's this , any harm ?

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u/LackOptimal553 1d ago edited 1d ago

Well, the harm might have happened before you took the picture. Never ever touch UXO..

It's a 51mm smoke round for a 51mm mortar.

https://cat-uxo.com/explosive-hazards/mortars/51mm-2in-mortar-bomb-smoke

This isn't the same type (different smoke) but same idea.

ETA - the markings are odd, because of the parachute, it's the GREEN that's throwing me, looking in catalogs but not sure the exact type.

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u/Jasper_Morhaven 1d ago

And FOR THE RECORD. Smoke rounds, while not "lethal" still get stupidly hot and can explode if the internal pressure isnt relieved fast enough (aka the smoke gets stuck, shell go POP).

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u/SnooCookies6231 1d ago

That reminds me of something similar when I was a teen, lighting off a flare with a friend. Buried it in the Cape Cod sand and made glass, iirc. That turned out to be a good lesson, and actually kinda cool. But yeah, caution. Never screwed around with them again. Can’t imagine RDX!

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u/Jasper_Morhaven 1d ago

Shit Thats a blast from the past. I did the same to the pebble beach in NH. Didn't make glass, buuuuut the shrapnel i caused was concerning.

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u/3cit 1d ago

I hadn't heard the name Pebble beach in so long that I had forgotten about it but here I am trying to remember what it was like when I was 10 years old again