The CCI Maxi-Mag HV .22 WMR 40 gr Total Metal Jacket delivers high-velocity rimfire performance that serious plinkers, target shooters, and small-game hunters trust, with a 40-grain TMJ bullet launching at 1875 fps and producing approximately 312 ft-lbs of muzzle energy for dependable penetration and energy transfer at typical rimfire distances. This Maxi-Mag series round pairs CCI priming and brass casings with a Total Metal Jacket bullet design that reduces lead fouling and maintains barrel consistency during extended range sessions, making it an excellent choice for sighting-in rifles, precision target work, and ethical varmint or predator work where controlled expansion and shot placement matter. Youll notice consistent accuracy shot-to-shot, predictable trajectories for range work, and reliable ignition from cold or mixed-condition field use, which is why competitive shooters and guides often reach for Maxi-Mag HV when they need repeatable results. If youre comparing .22 WMR options for hunting, plinking, or technical rimfire drills, CCI Maxi-Mag stands out for its velocity, muzzle energy, TMJ cleanliness, brass casing reliability, and real-world terminal performance.