Modern Hypervelocity loadings of the 22 Long Rifle use bullets as light as 30 grains (1.9 g), and modern blends of powder to make full use of a rifle barrel to generate velocities far higher than normal loads, and chamber pressures high enough to cycle semi-automatic firearms reliably. The most well known of these is the CCI Stinger, which actually goes so far as to stretch the case length slightly, so that with the short, light bullet, the overall length is still within the max overall length for the 22 Long Rifle. The 22 Long is still produced as it survived the change over to smokeless powders. CCI currently loads a high-velocity 22 Long with a MV of 1215 fps and a ME of 95 ft. lbs. Specifications Length: Case: 0.613 in (15.6mm) Overall: 0.888 in (22.6mm) Bullet weight: 29 gr (1.88 g) Twist: 1 in 20 for dedicated firearms See also .22 BB .22 CB .22 Short .22 Extra Long .22 Long Rifle .22 Magnum .22 Hornet 5 mm caliber List of rifle cartridges List of rimfire cartridges References 1871 introductions Pistol and rifle cartridges Rimfire cartridges