.38 Super

The .38 Super, also known as .38 Superauto or .38 Super Auto, is a pistol cartridge that fires a 0.356-inch-diameter bullet. The Super was introduced in the late 1920s as a higher pressure loading of the .38 ACP or .38 Auto. The old .38 ACP propelled a 130-grain bullet at 1,050 ft/s.Wikipedia
Bullet diameter9.04 mm (0.356 in)
Case length22.86 mm (0.900 in)
Case capacity1.14 cm3 (17.6 gr H2O)
Rim diameter10.31 mm (0.406 in)
Base diameter9.75 mm (0.384 in)
Neck diameter9.75 mm (0.384 in)

Aguila Ammunition 38 SUPER AUTO +P FMJ / FULL METAL JACKET NO. 1E382112

Aguila Ammunition, Pistol, 38 Super AUTO + P, 130Gr, Full Metal Jacket, 50 Round Box