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$18.24
Winchester Game and Target 21 Sharp 37 grain solid flat nose X21C ammo uses a heavier, flat-fronted projectile than the 25-grain offering in the same rimfire family. Its 1,335 fps muzzle velocity reflects the different bullet-weight and speed combination, with a 100-round box intended for sustained target practice.
The 21 Sharp cartridge was developed around a modern, non-heeled bullet arrangement, permitting projectile profiles unlike those traditionally associated with 22 LR. In this X21C configuration, the solid nose is oriented toward target and general field use rather than hollow-point expansion. The cartridge requires a correctly chambered 21 Sharp firearm despite the visual similarities shared by small rimfire cases.