Winchester Super-X Rimfire cartridges are the most technologically advanced ammunition. By combining advanced development techniques and innovative production processes they have elevated ammunition performance to its highest level. – Caliber: 22 Winchester Magnum Rimfire – Bullet Weight: 40 gr – Bullet Type: Jacketed Hollow Point – Muzzle Energy: 324 ft / lbs – Muzzle Velocity: 1910 fps – Rounds Per Box: 150
