The Remington Thunderbolt .22 LR 40-grain Lead Round Nose (LRN) High Velocity Brass 500-round box is an economical, high-output rimfire cartridge engineered specifically for high-volume target shooting, plinking, marksmanship training, and pest control in .22 Long Rifle firearms. A common challenge when firing bulk rimfire ammunition is erratic ignition, failure to fire caused by uneven priming compound distribution, and sluggish slide or bolt cycle speeds in semi-automatic platforms. Remington resolves these operational performance issues through strict rim thickness manufacturing controls, uniform priming compound application, and a high-velocity propellant charge that generates dependable backpressure for crisp cycling.
The core technical advantage relies on the load's 40-grain Lead Round Nose projectile paired with Remington's non-corrosive rimfire priming process. The 40-grain solid lead projectile features a classic round-nose profile engineered for snag-free feeding across a wide range of semi-automatic handgun magazines, rotary rifle mags, and tubular feeds. Remington's automated priming process ensures the priming mixture distributes completely into the rim cavity, providing immediate, hot ignition upon firing pin strike to eliminate dead spots and misfires. Furthermore, the solid lead alloy bullet maintains stable barrel friction to deliver consistent internal pressures.
Launching its 40-grain solid lead projectile at a factory-rated high velocity of 1,255 FPS (generating 140 ft-lbs of muzzle energy), this Thunderbolt load generates the ideal recoil impulse and gas pressure to cycle semi-automatic handguns, rifles, and carbines cleanly without over-stressing internal actions. Assembled using precision-drawn brass cases, clean-burning propellants, and reliable priming, the round supports positive feeding, clean extraction, and reliable rim firing. Packaged in an economical 500-round bulk box, it serves as a go-to choice for shooters seeking budget-friendly, reliable target performance.
Key Benefits
- High-Velocity Output (1,255 FPS): Generates sufficient gas pressure and slide impulse to reliably cycle semi-automatic handguns and rifles.
- Uniform Rim Priming: Even distribution of non-corrosive priming compound in the rim cavity minimizes misfires and failure-to-fire incidents.
- Lead Round Nose Profile: Traditional 40-grain solid round-nose geometry ensures smooth feed ramp travel across diverse magazine designs.
- High-Volume Bulk Packaging: 500-round box offers maximum value for extended target practice, plinking, and high-repetition marksmanship drills.
Technical Specification
- Caliber: .22 Long Rifle (.22 LR)
- Ballistics: 1,255 FPS Muzzle Velocity | 140 Ft-Lbs Muzzle Energy | High Velocity Load
- Projectile: 40 Grain | Lead Round Nose (LRN) | Solid Lead Bullet
- Case/Primer: Precision-Drawn Brass Rimfire Case | Non-Corrosive Rimfire Priming | Clean-Burning Powder
- Logistics: 500 Rounds Per Box | Remington Thunderbolt Ammunition Series
- Dimensions: Standard .22 LR Geometry | SKU: 21241
- Application: High-Volume Target Shooting, Plinking, Marksmanship Training, and Pest Control
- Standards: SAAMI Compliant | Remington Factory Quality Assurance Standards
If you’re running a .22 LR platform for training or high-round-count shooting, this load maintains cycling consistency and ignition reliability across extended sessions. Get dependable rimfire performance backed by proven manufacturing standards—available now from SMKW, a trusted source for ammunition.
