I have a Swiss 20x128 cartridge (pictured below) with a blue projectile and grey fuze that I have tentatively identified as HEI. Is this the correct identification for this round?
I’ve also seen a 30x113B Swiss round with the same color code (unfortunately I have no photo), along with the designation “MB-916” stamped in black ink on the projectile. I am guessing that the “B” stands for “Brand” i.e. incendiary. Does “M” indicate Minen or something else?
Thanks in advance!
The 20x128 round in question: