Lapua Pistol King 22LR 40gr LRN Rimfire Ammo - 50 Rounds
Lapua Pistol King 22LR 40gr LRN Rimfire Ammo - 50 Rounds
- Calibre: .22 LR
- Manufacturer Sku: 420164
- Bullet Weight Grains: 40
- Bullet Weight Grams: 2.59
- Bullet Type: Lead Round Nose (LRN)
- Rounds Per Box: 50
- Muzzle Velocity Mps: 285
- Muzzle Velocity Fps: 935
- Muzzle Energy Joules: 105
- Muzzle Energy Ft Lbs: 77
- Ballistic Coefficient G1: 0.172
- Case Type: Brass
Finnish precision and world-class quality control come together in the Lapua Pistol King 22LR 40gr LRN Rimfire Ammo - 50 Rounds, a load developed specifically for competitive pistol shooting and accuracy-focused practice with short-barrelled firearms. Lapua engineered this round around consistency first, with uniform powder charges, primer sensitivity, and bullet seating depth held to tight tolerances across every production run. Running at a muzzle velocity of 285 m/s (935 fps) from a 150 mm test barrel, the Pistol King sits comfortably in subsonic territory, avoiding the transonic instability that can erode group sizes at practical pistol distances. For target shooters and competitors who demand predictable, repeatable performance round after round, this is purpose-built ammunition from one of the most respected rimfire manufacturers in the world.
Lapua Pistol King 22LR 40gr LRN Rimfire Ammo - 50 Rounds Key Features
- Calibre and Bullet: Chambered in .22 LR with a 40gr (2.59g) Lead Round Nose projectile, a proven profile for consistent feeding and reliable accuracy in pistol-format actions.
- Subsonic Muzzle Velocity: Clocking 285 m/s (935 fps) from a 150 mm barrel, this load stays below the transonic threshold, eliminating the instability that occurs as a bullet decelerates through the speed of sound and helping maintain tighter groups at target distances.
- Muzzle Energy: Generates 105 joules (77 ft-lbs) at the muzzle, consistent with the calibre and appropriate for the target and competition disciplines this round is designed for.
- Ballistic Coefficient: G1 BC of 0.172, typical for a subsonic LRN .22 LR load and suitable for the shorter engagement distances of pistol competition and precision practice.
- Brass Case: Non-corrosive brass casing supports reliable extraction and consistent chamber fit, contributing to the round-to-round uniformity that competition shooters rely on.
- Short-Barrel Optimised: Developed and tested specifically from a 150 mm barrel, meaning performance figures reflect real-world pistol use rather than rifle-barrel test data.
- Lapua Quality Control: Manufactured in Finland under Lapua's strict production standards, with tightly controlled powder charges, seating depths, and primer sensitivity to ensure shot-to-shot consistency.
- Packaging: Supplied in a 50-round box with protective plastic divider trays to safeguard bullet tips and case rims during storage and transport.
Whether you're training for ISSF pistol events, working on trigger refinement, or competing in club-level target disciplines, the Lapua Pistol King delivers the consistency and predictability that separates purpose-built competition ammunition from general-purpose plinking loads. Fifty rounds per box, built to a standard that Lapua's reputation demands.
What is Lapua Pistol King .22 LR designed for?
Lapua Pistol King is developed specifically for precision pistol competition and accuracy-focused shooting with short-barrelled firearms. It's engineered for consistent, predictable shot-to-shot performance rather than terminal effect, making it well suited to target shooting, competition disciplines, and serious precision practice with .22 LR handguns.
Why does Pistol King use a subsonic muzzle velocity?
The subsonic muzzle velocity — around 285 m/s (935 fps) — is intentional. It keeps the bullet below the transonic range, where instability can occur as a projectile transitions between supersonic and subsonic flight. This delivers more consistent accuracy from short-barrelled handguns, which is critical in competition scenarios where shot-to-shot predictability matters.
What barrel length was this ammunition tested and optimised for?
Lapua Pistol King is optimised for short-barrelled handguns and was tested from a 150 mm (approximately 6-inch) barrel. Shooters using similar barrel lengths should see performance consistent with the published specifications, including the 285 m/s muzzle velocity and 105 joules of muzzle energy.
What bullet type and case material does Pistol King use?
Each round features a 40-grain Lead Round Nose (LRN) bullet — a traditional profile well suited to target shooting — seated in a brass rimfire case. The non-corrosive, brass-cased construction supports reliable functioning and consistent primer sensitivity across Lapua's tightly controlled manufacturing standards. Each 50-round box includes plastic divider trays to protect bullet tips and rims.
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