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School evacuated as boy takes grenade to show-and-tell
(www.bbc.com)
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this post was submitted on 18 May 2025
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a grenade isn't that bad, as long as there's something like a wall between you and the shrapnel right?
Depends on the wall. Solid concrete, safe. Residential interior wall made of plaster, not safe. Brick wall, safe. Near a window, not 100% safe. Do you know the composition of a wall? Chances are no, so remove ass from the area.
They have an injury radius of about 50m, so 100m of free air is safe.
In the case of a school, painted cinder block walls usually (in the US; why yes, our schools do resemble prisons)
A lot of schools have exterior walls that are concrete filled in the US, especially true in tornado and hurricane areas. Interior, I think they went to concrete filled for most of them but you would have to check building codes when the structure was made.
A hollow core cinder block wall should be adequate protection from a grenade.
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50m? That's impressive. Most modern ones are only 15m.
That is lethal range, range of potential injury is 50m
I'm no expert but Wikipedia says 15m is wounding range? I'm just wondering cos I don't know if you can throw a grenade more than 50m
You can although that is uncommon.