Or did it use a 30—.06 cartridge like the M-1 Garand?
Yes, they both used the .308 round. Also what did the MG- (or was it MK?)42 use?
Affirm above .308 Winchester (7.62 mm NATO)
Yes 7.62 X 51 mm NATO.
@Adirondackwannabe the MG42 used the 7.92 X 57 mm Mauser cartridge.
Thanks!