Winchester USA 21 Sharp 42gr Full Metal Jacket rimfire ammunition is intended for game and target shooting and is supplied in a 100-round retail box. The 21 Sharp designation permits bullet types not commonly available in standard .22 LR offerings, supporting improved consistency for precision and range use. This load uses a 42-grain FMJ projectile and is designed for reliable feeding and reduced lead fouling.
Packaging
Box: Sold per box of 100 rounds.
Case: Available by case consisting of 20 boxes (totaling 2,000 rounds); a case quantity is achieved by ordering the required number of boxes.
Key Specifications
- The caliber is .21 Sharp.
- The bullet weight is 42 grains.
- The bullet type is Full Metal Jacket (FMJ).
- The muzzle energy is 165 ft-lbs.
- Each retail box contains 100 rounds.
- There are 20 boxes per case.
- The units per case total 2,000 rounds.
- The model designation is Game & Target.
- The brand style is USA White Box.
- The product type is Full Metal Jacket.
This Winchester USA 21 Sharp FMJ offering provides a straightforward packaging and specification set for shooters seeking a consistent, full-metal-jacket rimfire load for range and game applications. The 100-round box format and 20-box case option make it practical for both regular range use and bulk purchasing.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




