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.38 Super Auto

In Stock .38 Super Auto Ammo For Sale- Top Ammo Vendors Available

The .38 super auto has been around since about 1929. The .38 Super, also known as .38 Superauto or .38 Super Auto, is a pistol cartridge that fires a 0.356-inch-diameter (9.04 mm) bullet. The Super introduced in the late 1920s as a higher pressure loading of the .38 ACP or .38 Auto.

Since 1899, the .38 Special cartridge has been a favorite of law enforcement throughout the United States. This sturdy round is a reliable choice for both self-defense and concealed carry.

The .38 super auto became very popular among the action pistol competitions of the IPSC. Today, the .38 super auto is used primarily for defense purposes, and even though there are limited options, it will probably survive in the shadows.

About .38 super auto

  • Type: Pistol
  • Place of origin: United States
  • Manufacturer: Colt's Manufacturing Company
  • Produced: 1929


  • Parent case: .38 ACP
  • Case type: Semi-rimmed or rimless, straight
  • Bullet diameter: .356" (9.04mm)
  • Neck diameter: .385" (9.75 mm)
  • Base diameter: .385" (9.75mm)
  • Rim diameter: .406" (10.31 mm)
  • Rim thickness: .05" (1.27 mm)
  • Case length: .9" (22.86 mm)
  • Overall length: 1.28" (32.51 mm)
  • Case capacity: 17.6 gr H2O (1.14 cm3)
  • Rifling twist: 1 in 16 in (406 mm)
  • Primer type: Small pistol
  • Maximum pressure: 36,500

Ballistic performance

Bullet mass/type Velocity Energy
30 (8.42 g) Magtech FMJ 1,215 ft/s (370 m/s) 426 ft⋅lbf (578 J)
115 (7.45 g) Buffalo JHP +P 1,450 ft/s (440 m/s) 537 ft⋅lbf (728 J)
147 (9.53 g) Double Tap FMJ FP 1,225 ft/s (373 m/s) 490 ft⋅lbf (660 J)
130 (8.42 g) Remington UMC 1,215 ft/s (370 m/s) 426 ft⋅lbf (578 J)
124 (8.04 g) Ruag FMJ 1, 411 ft/s (430 m/s) 546 ft⋅lbf (740 J)

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