I have a 7.5 MAS with the headstamp VE 49 D 1. While I can identify who made the cartridge and the date, I have no idea to what the “D” and “1” refer. I am guessing the “D” is the metal supplier but I have no idea who that may be.
Also the bullet is a FMJ that is either copper washed steel or gilding metal and it has a black ring around the case mouth which I assume is just sealant.
The case appears to be made from aluminum as it is very light. Is this just a military ball loading or is this some type of special purpose load? The case and bullet together weigh about 13.27 grams.
Any information would be greatly appreciated.