Here is an item I’ve had for a while and know nothing about. It’s a one piece plastic snap cap or toy cartridge? It appears to be painted silver. The headstamp is “PAT. NO. 1091488 PAT P”.
It has an empty primer pocket and a 7.8mm deep cavity in the “bullet”. In the center of the bullet cavity is a second cavity filled with some type of a white substance.
Cs Lgt: 33.68mm
Total Lgt: 40.18mm
Ant thoughts on what it might be and who made it?