.223 Winchester Super Short Magnum Rifle Ammunition, .223 WSSM Rifle Ammunition Ammo For Sale!

223 WSSM offers a 600 ft/s (180 m/s) gain, with a 55 gr (3.6 g) bullet, over the standard . 223 Rem. It also offers a 440 ft/s (130 m/s) gain over the 22-250, a popular varmint round. This comes out to a 600 ft·lbf (810 J) gain over a standard .

How fast does a 223 WSSM shoot?
 
 The . 223 WSSM (Winchester Super Short Magnum, 5.56×42mm) is a .
Bullet mass/typeVelocityEnergy
40 gr (3 g) BT (boat-tailed)               4,352 ft/s (1,326 m/s)      1,683 ft⋅lbf (2,282 J)
60 gr (4 g) JSP          3,733 ft/s (1,138 m/s)      1,857 ft⋅lbf (2,518 J)
75 gr (5 g) BT(boat-tailed)          3,378 ft/s (1,030 m/s)      1,901 ft⋅lbf (2,577 J)
What does WSSM ammo mean?
 
 Winchester Super Short Magnum, or WSSM is a line of rebated rim bottlenecked centerfire short magnum cartridges introduced by the U.S. 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.