Some time ago I posted this photo of a box of 7.62 mm T65-E3 cartridges, but it was empty and I didn’t remember the kind of cartridges that were inside. I cannot recall was the thread was, either.
This ammunition was brought to Spain for the Cetme trials, and probably for the development of the 7.62 x 51 round too.
Well, now I have found another box with some rounds inside, so I am posting here the box and a picture of the cartridge with the headstamp.
The bullet is GMCS and the cartridge weighs 26.8 grams (413 grains).