The RWS Biathlon Competition .22 LR 40gr LRN is match-grade rimfire ammunition engineered specifically for cold-weather precision and smallbore target shooting. Formulated with specialized propellants and proprietary bullet lubrication, each round is tested to maintain uniform velocity and stable combustion in temperatures down to -20°C. Operating at a subsonic muzzle velocity of 320 m/s with 137 Joules of muzzle energy, it prevents transonic flight disruption to deliver tight groups at standard 50-metre competition distances. Packaged in boxes of 50 rounds, this ammunition features a Lead Round Nose projectile and lead-free priming compound to reduce heavy-metal emissions on the firing line.

Key Features

• Sub-Zero Thermal Stability: Engineered with specialized powders and bullet lubricants rated to perform down to -20°C without velocity loss or vertical stringing.
• Subsonic Aerodynamic Profile: Operates at 320 m/s to eliminate transonic shockwaves, ensuring consistent stability at 50 metres.
• Lead-Free Priming: Utilizes a clean-firing, lead-free priming compound to minimize airborne heavy-metal exposure during sustained shooting sessions.
• Match-Grade Tolerances: Quality-controlled production minimizes velocity deviations across bolt-action, straight-pull, and precision match chambers.

Specifications

• Calibre: .22 Long Rifle (.22 LR)
• Bullet Type: Lead Round Nose (LRN)
• Bullet Weight: 40 grains (2.60 grams)
• Muzzle Velocity (V₀): 320 m/s (~1,050 fps)
• Muzzle Energy (E₀): 137 Joules
• Priming: Lead-free
• Box Quantity: 50 rounds
• Firearm Compatibility: Precision rifles chambered exclusively in .22 LR (Category A licence required in Australia)

Who is the RWS Biathlon Competition .22 LR 40gr LRN 50 Pack for?

• Competitive winter biathletes — requiring ammunition that maintains a stable 320 m/s muzzle velocity and uniform 137 Joules energy output under sub-zero racing conditions at standard 50-metre IBU targets.
• Smallbore target shooters — demanding tight match tolerances with a 40 grains Lead Round Nose projectile for consistent group placement in 50-metre to 100-metre benchrest and 3-position disciplines.

Less suitable for: Target shooting at distances exceeding 100 metres where dedicated high-velocity long-range rimfire loads are required; small-game hunting where expanding hollow-point rimfire ammunition is necessary; or firearms chambered in .22 WMR, .17 HMR, or .22 Short.