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What is a 356 TSW?

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07 April 2004, 07:55
What is a 356 TSW?
My friend has a cartridge we cannot identify. It looks like a 9mm parabellum, but a couple milimeters longer. The headstamp is 356 TSW.

Can anyone tell us about this?

Thanks, this is my first time posting to this (cartridge collecting) forum.
07 April 2004, 09:54
The Duh-merican
TSW stand for Team Smith & Wesson. They came out with a somewhat proprietary cartridge to have a safe 'Major' 9mm load for competition. I think.
07 April 2004, 11:37
Welcome aboard N'gagi.

Your cartridge is the 356 Team Smith and Wesson as T D-m states. Brandts Manual of Pistol and Revolver Cartridges gives us a velocity of 1220.5 per second and an energy figure of 486.1 ft/lbs.

Designed for the newly formed Team Smith and Wesson shooting team in the early nineties , the cartridge was developed by elongating the 9 x 21mm case to a length of 21.5mm to gain case volume.