A friend of mine has asked me to identify a cartridge for him, and I cannot. He describes it as being almost identical to the 7 x 57m/m Mauser cartridge, but with a shorter neck resulting in a 54m/m case length. Headstamp is VPT 41. The primer is brass, with the stylized “NP” stamped on it, from Norma. The bullet is CN RN FMJ and the case is brass.
Measurements are al follows:
Case Length: 2.134"
Bullet Diameter: 0.282"
Neck Diameter: 0.313"
Diameter just below shoulder: 0.433"
Base Diameter: 0.475"
Rim Diameter: .476"
Any help in identifying this, or thoughts on what it might be, will be appreciated. I do not have the cartridge so cannot provide any picture of it.