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9mm Winchester Magnum

Handgun cartridge

Handgun cartridge

FieldValue
name9mm Winchester Magnum
originUnited States
typeHandgun
designerWinchester
case_typeRimless, straight
bullet.355
neck.379
base.391
rim_dia.394
rim_thick.050
case_length1.160
length1.575
max_pressure45000
pressure_methodCUP
bw1115
btype1MC
vel11450
en1537
balsrc*SAAMI*

The 9mm Winchester Magnum, which is also known as the 9×29mm, is a centerfire handgun cartridge developed by Winchester in the late 1970s. The cartridge was developed to duplicate the performance of the .357 S&W Magnum in an auto-pistol cartridge.

The first handgun which chambered the cartridge was the Wildey pistol. Since then, Thompson/Center and LAR Grizzly Win Mag have produced barrels chambered for this cartridge and AMT chambered their Automag III for it too, but the cartridge never reached the popularity enjoyed by other handgun cartridges.

Starline Brass in Sedalia, Missouri, still make brass for this cartridge, although much of its production is now used to make 9mm blank firing cartridges for firearms chambered for 9×19mm, as this is easier to accomplish than using .223 Remington (5.56×45mm) cases, which may leave the neck area of the blank too thick to crimp properly. 9mm Winchester Magnum cases can also be trimmed and resized for reloading 9×25mm Mauser.

References

References

  1. "SAAMI - Velocity and pressure data / centerfire pistol and revolvers cartridges, p. 11".
  2. Taffin, John. "Taffin Tests 9mm Magnum". John Taffin.
  3. (22 October 2010). "AMT Automag II-V".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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