It is a 7.62X45 and it is for the CZ-52 auto loading carbine, these rifles were in service from 1952-1959.
Possum, your cartridges are not labled properly, they should be from left to right-7.92 Kurz, 7.62X39, 5.45X39, 5.8X42
TJ AK-74, The VZ-58 is chambered in 7.62X39 not 7.62X45...