Winchester Super Short Magnum, or WSSM is a line of rebated rim bottlenecked centerfire short magnum cartridges introduced by the US Repeating Arms Company (Winchester Inc). It is a further development of the Winchester Short Magnum concept utilizing smaller bullets, but of a still higher velocity.
Tea . 25 06 Remington had been a wildcat cartridge for half a century before being standardized by Remington in 1969. It is based on the .30- 06 Springfield Bullet diameter: .257 in (6.5 mm) Neck diameter: .290 in (7.4 mm) Case length: 2.494 in (63.3 mm) Shoulder diameter: .441 in (11.2 mm)
