METRIC MILITARY UP TO 6.99mm 6 X 35mm TSWG 6 X 39 SOUTH AFRICAN XPL 6 X 44 SPECIAL CASE (Pre-SAW) 6 X 45 BRUNSWICK CORP. SAW 6 X 45 SOUTH AFRICAN XPL 6 X 45 SAW (Squad Automatic Weapon) 6 X 49 NIKONOV 6 X 50 SAW LONG 6 X 51 RSA PROOF 6.25 X 43 BRITISH 6.35 X 48 GP80 SWISS EXPERIMENTAL 6.35 X 48 US EXPERIMENTAL 6.35 X 53 US EXPERIMENTAL (25 HOMOLOGOUS) 6.45 X 48 SWISS GP80 6.5 X 20R ROMANIAN (CHAMBER INSERT) 6.5 X 43 IWK 6.5 X 50 JAPANESE ARISAKA (TYPE 30) 6.5 X 50 JAPANESE ARISAKA (TYPE 38) 6.5 X 51 NATO (BELGIAN EXPERIMENTAL) 6.5 X 52 MANNLICHER CARCANO 6.5 X 53 MONDRAGON 6.5 X 53.5R MANNLICHER M.95 6.5 X 53.5 DAUDETEAU Nº 12 6.5 X 54 FRENCH XPL. BERTHIER 6.5 X 54 MANNLICHER SCHöNAUER 6.5 X 55 SE 6.5 X 55.8 FRENCH XPL. BERTHIER 6.5 X 58 PORTUGESE VERGUERIO 6.5 X 61 S.T.A. (C.A.P.) 6.6 X 8.5 SUB CAL. ALBINI M.1887 (1902)