.24 Caliber

Wednesday, August 15th, 2018

Introduced in 2003 the .243 WSSM is a high velocity round designed to produce high levels of energy. The parent cartridge is the .300 Winchester Short Magnum and is shortened and necked down for the .243 diameter bullet. The short fat design of the cartridge allows for a more uniform and efficient burning of propellant powder than other cartridges. The maximum working pressure of the .243 WSSM (65,000 PSI) did not improve the ballistic performance of the original .243 Winchester (60,000 PSI), as their ballistics are considered identical.