CMH Forum

Re: [Weapons] shell case
In Response To: [Weapons] shell case ()

M21A1 stands for Signal, ground, pyrotechnic
1944 is the date of manufacture (WWII)
20mm is the nominal size of the round
SMC may be the manufacturer's mark

It appears this is a tracer round for a 20mm antiaircraft heavy machine gun.

Messages In This Thread

[Weapons] shell case
Re: [Weapons] shell case
CMH Minuteman

To Join the Company of Military Historians click here

CMH Minuteman