Doubletap Ammunition 450 Short Magnum Cartridge 255 Grain Keith Semi-Wadcutter Hard Cast Box of 20

Product #: 859894 DoubleTap #: 450SM255SWC20
Please Sign In or Create an Account to use this feature.

You must be 21 years or older to order ammunition. Ammo must ship UPS ground. Due to Department of Transportation regulations, we cannot accept returns on ammo. Please check local laws before ordering.

  • Information
Doubletap was started by Mike McNett, President and CEO, in his Salt Lake City garage in 2002. Since then, Doubletap has developed a reputation for powerful, reliable and accurate ammunition loaded with a variety of premium bullet options. With their "no punches pulled" style of building ammunition Doubletap uses only the best components available to manufacture the highest performing ammunition possible. With special attention to quality control and precision craftsmanship each individual round is inspected and handled by Doubletap employees that share a passion for shooting and hunting resulting in the highest quality assurance possible.

Doubletap 450 Shot Magnum Cartridge ammunition should only be fired in pistols that have been modified to handle the increased pressure of this round. The 450 SMC is based off the 45 Super but features a small primer pocket allowing for stronger web area of the case. Several gunsmiths specialize in converting pistols to 450 SMC. The case length is the same as standard 45 ACP so the same magazines and reloading dies can be used. These hardcast semi-wadcutter bullets offer the deepest penetration possible in this round. An ideal choice for hunting and for protection while hiking or camping in areas known for large dangerous predators.

Doubletap's Ballistic Test Results

1911 5" Barrel
  • Muzzle Velocity: 1030 fps
  • Muzzle Energy: 601 ft. lbs.

  • 6" Lone Wolf Barrel.
  • Muzzle Velocity: 1120 fps
  • Muzzle Energy: 710 ft. lbs.

  • Technical Information:
  • Caliber: 450 SMC
  • Bullet Weight: 255 Grains
  • Bullet Style: Keith Semi-Wadcutter
  • Case Type: Brass

  • Ballistics Information:
  • Muzzle Velocity: 1100 fps **
  • Muzzle Energy: 685 ft. lbs.

  • (** Approximate velocity. Resulting velocity may vary and will be listed on each box)
    Was this information helpful? Yes No

    Thank you! Your valuable feedback helps improve our product information and offering.

    Help Us Improve

    Please enter the missing required fields:

      Do you accept our terms and conditions? *
      Know someone who may like this? Email this Page to a Friend

      Customer Reviews

      The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.

      NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.