The 25 Winchester Super Short Magnum (WSSM) was introduced in 2004 along with the 243 WSSM. Velocity is essentially the same as the 25-06 Remington, with a 110-grain bullet at 3100 feet per second and 120-grain bullet at 2990 fps. However, with its short (1.67-inch) case it has the advantage of being housed in short actions, and its very fat (.5559-inch) base diameter allows a smooth burning curve that is conducive to accuracy. It has not become popular and has only been manufactured by Winchester, but like all fast 25-caliber cartridges it is a fine choice for medium-sized big game in open country.
