Just for the sake of discussion, why do you think the Czech military decided not to come up with a 7.62x54R version of the VZ. 58 action when they were whipping them up in the 50s? The max case pressure of the x39 an x54R are quite close so the action would have been sufficiently strong I gather. Furthermore, the Czech military obviously had a role for such a rifle as they adopted the Dragunov around the same time but perhaps they had exhausted their resources by that time?
http://files.sa58.cz/200002619-ee4a6ef445/Sporťák.JPG
http://files.sa58.cz/200002619-ee4a6ef445/Sporťák.JPG


















































