20 mm Vulcan color code

Can anybody tell me what the color codes signify on this projectile marked GLN07B182-011? Thanks! Tom from Minnesota


The red band and yellow body on the US M246 indicates HEIT-SD. (High Explosive Incendiary Tracer -Self Destruct).

Your item may be a different loading but others could help there.


Your cartridge is shown on the 20mmcollector.net website.
Identified as PGU-28/B SAPHEI.

Ah! The black band is in play here…

Nice item Tom. And thanks to Ron for the proper ID!


Thanks guys!

Some additional information-

GLN = (Galion Inc., Galion, Ohio, USA)