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$15.47
Winchester Super-X 22 WMR 40 grain full metal jacket X22M ammo pairs the magnum rimfire cartridge with a jacketed, non-expanding bullet designed for a different role from the line's varmint hollow points. The enclosed nose keeps the projectile's profile intact without an expansion cavity, making bullet construction the principal distinction of this Super-X loading.
At the 1,910 fps muzzle velocity listed for X22M, this 40-grain cartridge has considerably more speed than conventional 22 LR range ammunition. Winchester packages it in a 50-round box for firearms chambered in 22 WMR; despite the similar nominal bullet diameter, 22 WMR and 22 LR cartridges are not interchangeable.