Can anybody please tell me what matches these cartridges were intended for, or any other information?
I have a cartridge with a FA 56 h/s and a NATO mark with an overall length of 71.25mm. Next has the same headstamp but with a longer length of 74.75mm. Last has a WCC58 h/s with a silver coloured domed primer and a massive 76.5mm overall length. None have neck crimps