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The Winchester 21 Sharp represents a genuinely new approach to rimfire ammunition rather than just another .22 LR variant. Built from the ground up for lead-free projectiles, this cartridge uses a smaller diameter 0.21-caliber bullet seated in a standard .22 LR case. That small change opens up a world of design possibilities that weren't available with the traditional heeled bullet design.
The real innovation here is in the engineering. The .22 LR has used heeled bullets for over a century, which limits bullet design options dramatically. Winchester's 21 Sharp eliminates that restriction, allowing for modern, streamlined projectile designs that deliver better ballistics and terminal performance. The copper matrix bullet on this load produces sub-1.5 MOA groups at 50 yards, substantially outperforming lead-free .22 LR offerings. You're getting superior accuracy without the environmental trade-off.
At 1750 fps with 170 foot-pounds of energy, the 25-grain load runs faster than comparable standard .22 LR ammunition. But the real benefit isn't just speed, it's consistency. Testing has shown the 21 Sharp exhibits lower standard deviation between rounds compared to .22 LR and .22 Magnum. For range work, that means tighter groups and more predictable point of impact. Field testing confirmed individual groups under half an inch at 50 yards, which is respectable precision from a rimfire platform.
This cartridge works well for both applications. The streamlined copper matrix bullet and higher velocity maintain energy better downrange than traditional .22 LR. For small game, the 21 Sharp produces terminal performance comparable to .22 Magnum in terms of expansion and penetration, yet stays economical and comfortable to shoot. The lead-free composition makes it suitable where lead ammunition restrictions apply, but without asking you to accept inferior results.
While the 21 Sharp cartridge will physically fit into a .22 LR chamber due to identical case dimensions, it cannot be fired with accuracy or precision in a standard .22 LR barrel. The 21 Sharp requires a dedicated .21-caliber barrel with proper 1:12 rifling twist to function safely and accurately. Always use ammunition in firearms specifically chambered for it.
The 21 Sharp was designed from the ground up to deliver superior accuracy compared to .22 LR, especially with lead-free options. This copper matrix load produces sub-1.5 MOA groups at 50 yards and has demonstrated tighter groupings than comparable lead-free .22 LR offerings. The streamlined bullet design and modern construction eliminate the limitations of traditional heeled bullets used in .22 LR.
No. Testing shows the 21 Sharp 25-grain copper matrix delivers terminal performance comparable to .22 Magnum, with expansion and penetration that exceeds typical .22 LR ammunition. The copper matrix construction provides reliable expansion and weight retention, making it effective for small game hunting despite being lead-free.
Winchester, Savage, and other manufacturers have introduced rifles chambered in .21 Sharp. Options include bolt-action rifles at various price points. Since the 21 Sharp is a newly released cartridge, check with manufacturers for current model availability, as the selection continues to expand.
| UPC | 020892104921 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | S21SLF |
| Bullet Weight (Grains) | 25 |
| Caliber/Gauge | .21 Sharp |
| Grains | 25Gr |
| Length | 5.8000 |
| Model | |
| Product Type | Copper |
| Shipping Weight | 0.585 |
| Units per Box | 100 |
| Cost per Round | 0.19 |
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