Can anyone help with identifying this cartridge, I found it years ago in a mixed box. It has 5.6mm Kron Prince on a small label on the case. I can not find anything on a Kron Prince round.
Case lenght is - 1.34" or 34mm
Neck dia is - 0.232" or 5.85mm
Bullet dia is - 0.204" or 5.2mm
Rim dia is 0.345" or 8.8mm
It has a hollow point bullet