1) Winchester .32 Win. Special, all 20 cartridges have the "SUPER SPEED 32 WIN SP" head stamp. 2) Winchester .30 Win. (.30-30) S.P., all cartridges (13 of the 20 are included) have the "SUPER SPEED 30-30 WIN" head stamp. 3) Winchester .220 Win. Swift, all 20 cartridges have the "SUPER SPEED 220 SWIFT" head stamp. 4) Winchester .257 Win. Roberts, all cartridges (18 of the 20 are included) have the "SUPER SPEED 257 ROBERTS" head stamp. 5) Winchester .300 Savage, all 20 cartridges have the "SUPER-X 300 SAV" head stamp. 6) Winchester .250-3000 Savage, all 20 cartridges have the "SUPER SPEED 250-3000" head stamp.