.21 Sharp

.21 Sharp
Type	Rifle
Place of origin	United States
Production history
Designer	Winchester Ammunition
Designed	2024
Manufacturer	Winchester Ammunition
Produced	2024–present
Specifications
Parent case	.22 Long Rifle
Case type	Rimmed, straight wall
Bullet diameter	.2105 in (5.35 mm)
Neck diameter	.226 in (5.7 mm)
Base diameter	.226 in (5.7 mm)
Rim diameter	.278 in (7.1 mm)
Rim thickness	.043 in (1.1 mm)
Case length	0.613 in (15.6 mm)
Overall length	0.965 in (24.51 mm)
Rifling twist	1 in 12 in (300 mm)
Primer type	Rimfire
Maximum pressure (SAAMI)	24,000 psi (170 MPa)
Ballistic performance
Bullet mass/type Velocity Energy 25 gr (2 g) Game & Target 25 grain, Copper Matrix 1,750 ft/s (530 m/s) 170 ft⋅lbf (230 J) 37 gr (2 g) Game & Target 37 grain, Black Copper Plated 1,335 ft/s (407 m/s) 146 ft⋅lbf (198 J) 42 gr (3 g) Game & Target 42 grain, FMJ 1,330 ft/s (410 m/s) 165 ft⋅lbf (224 J) 34 gr (2 g) Super X® 34 grain, JHP 1,500 ft/s (460 m/s) 170 ft⋅lbf (230 J)
Test barrel length: 24 in Source(s): SAAMI

The .21 Sharp, is a SAAMI-standardized rimmed straight wall rifle cartridge standardised by Winchester Ammunition.

History

.21 Sharp was announced in September 2024 by Winchester Ammunition and was released in 2024. ^{[1] [2]}

Design

The cartridge was designed to shoot a copper jacketed bullet using a .22 LR case as some jurisdictions ban lead bullets. ^{[1] [3] [4]}

See also

• List of rifle cartridges
• .22 Long Rifle

References

1. "Please Welcome the 21 Sharp". winchester.com.
2. Beckstrand, Tom (April 8, 2025). "Winchester .21 Sharp Rimfire: Full Review". Guns and Ammo.
3. Benedikt, Joseph von (August 7, 2025). "Winchester's .21 Sharp Looks to Change the Rimfire Landscape". RifleShooter.
4. Association, National Rifle. "Review: Winchester 21 Sharp". American Hunter - An Official Journal Of The NRA.