Winchester Super-X 22LR 40 Grain Super Speed Round Nose (X22LRSS1) is a high-velocity rimfire load designed for increased performance in small game hunting and target shooting compared to standard velocity .22 LR rounds.
Key Technical Specifications
- Caliber: .22 Long Rifle (LR)
- Bullet Weight: 40 Grain
- Bullet Type: Copper Plated Round Nose (CPRN)
- Note: The copper plating helps reduce lead fouling in the barrel, which is particularly beneficial for high-volume shooting sessions.
- Muzzle Velocity: 1,300 FPS (Feet Per Second)
- Muzzle Energy: 150 ft-lbs
- Quantity: Typically sold in 50-round or 100-round boxes, though bulk options may vary by retailer.
Performance Characteristics
- "Super Speed": This specific "Super Speed" variant is rated at 1,300 FPS, which is faster than the standard Winchester Super-X 40gr Round Nose (usually rated at 1,255 FPS). The extra velocity provides a flatter trajectory and more energy on target.
- Reliability: The Super-X line is one of Winchester's most established brands, known for consistent ignition and cycling in various actions, including semi-automatics, bolt-actions, and revolvers.
Applications:
- Varmint/Small Game: The increased velocity makes it effective for humane harvests of squirrels and rabbits at slightly longer ranges.
- Plinking/Target: The round nose profile ensures smooth feeding in semi-auto magazines (like the Ruger 10/22 or S&W M&P 15-22).
Ballistic Data (Approximate)
| Range (Yards) | Velocity (FPS) | Energy (ft-lbs) | Trajectory (Inches) |
| Muzzle | 1,300 | 150 | - |
| 50 Yards | 1,123 | 112 | 0.0 |
| 100 Yards | 1,009 | 90 | -5.5 |
