The RWS .22 WMR 40 gr FMJ Ammunition (Model 2133083) is a precision-engineered rimfire hunting and target cartridge designed for firearms chambered specifically in .22 Winchester Magnum Rimfire. Featuring a non-expanding 40-grain Full Metal Jacket bullet, this ammunition delivers a muzzle velocity of 595 m/s (approx. 1,952 fps) and an energy output of approximately 460 Joules (339 ft-lbs). Engineered with brass casings and lot-tested for velocity consistency and gas pressure, it produces flat trajectories up to 100 metres with minimal tissue disruption and reliable cycling.

Key Features

• Pelt and Meat Preservation: The non-expanding 40 gr Full Metal Jacket profile cleanly penetrates small game without fragmentation, preventing unnecessary damage to meat and valuable furs.
• Consistent Ballistic Output: Generates 595 m/s muzzle velocity and 460 Joules of muzzle energy for dependable shot-to-shot trajectory within its 100-metre operating range.
• Match-Grade Manufacturing: Strict factory testing for pressure, dispersion circles, and velocity ensures reliable ignition and tight grouping.
• Target and Range Reliability: Brass-cased construction ensures smooth feeding, dependable cycling, and reduced bore fouling during high-volume shooting sessions.

Product Specifications

• Calibre: .22 Winchester Magnum Rimfire (.22 WMR)
• Bullet Type: Full Metal Jacket (FMJ)
• Bullet Weight: 40 grains (approx. 2.6 grams)
• Muzzle Velocity: 595 m/s (approx. 1,952 fps)
• Muzzle Energy: Approx. 460 Joules (339 ft-lbs)
• Case Material: Brass
• Packaging: 50 rounds per box (single box weight approx. 318 g)
• Effective Working Range: Up to 100 metres

Who is the RWS .22 WMR 40gr FMJ 50 Pack for?

• Small Game Hunters — requires the non-expanding 40 grains solid projectile to harvest edible small game like rabbits and hares with clean penetration rather than the explosive tissue damage caused by expanding rimfire hunting ammunition.
• Fur and Pelt Harvesters — relies on the 595 m/s muzzle velocity and non-fragmenting Full Metal Jacket profile of these .22 WMR cartridges to ensure minimal entry and exit hole damage when collecting pelts.

Less suitable for: Predator control and varmint eradication where expanding soft point or jacketed hollow point rounds are necessary to deliver high-shock terminal impact, shooting beyond the 100-metre operational envelope where centerfire calibres offer superior trajectory, or firearms chambered in standard .22 LR.