27 September 2026

Bloop

I've got Gun Stats stats for all the US 40mm grenades I can find.

Even a couple German ones!

A problem with Gun Stats is the area filled with smoke or gas is much smaller than published numbers would suggest.

I think this is because Gun Stats gives you the instantaneous coverage, but the real rounds burn for a while.

Up to two minutes for a smoke round.

The M651 CS round, for example, calculates to a 1 yard radius, but the specifications for the round says almost 7 yards.  But it's got a 20-30 second burn time, so that would let the cloud grow.

I learned about a new idea for smoke rounds.  The canopy version has an X shaped parachute that doesn't slow it down much, but is intended to snag in branches and hang your 90 seconds of smoke from the top of a tree.

Special thanks to Kevin Dockery who tracked down some pretty detailed information and put it on a web page! 

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