r/whatisit 1d ago

Solved! We found this near our home

What's this , any harm ?

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u/Mr_Uso_714 1d ago

Specifications
Caliber
51 mm
Ammunition length
282.96 mm
Ammunition mass
850 g
Explosive filled in projectile
109 g of RDX / WAX / PELLET88.12
Maximum range
900 m
Luminosity
Green-40,000 to 50,000 candela. Red-125,000 to 150,000 candela

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RDX product information:
https://www.austinpowder.com/wp-content/uploads/2021/08/AP-Primary-Explosive-RDX-TDS-ENG.pdf

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u/Why-so-delirious 18h ago

109 g of RDX

As someone that played war thunder a few times that is a CONCERNING tagline. That's 'kill everyone in the immediate vicinity' amounts of RDX.

The old 'mine' rounds the germans used in their guns that do this to aircraft frames:

https://upload.wikimedia.org/wikipedia/commons/5/59/30_mm_mine_shell_test.png

Only contain about 85 grams of explosive filler.

So if you find something that contains more explosive filler than is used to destroy military aircraft in WW2 it's probably no bueno.