The Fiocchi Performance Shooting Dynamics Rimfire Ammunition Field Dynamics series brings reliable 22 Long Rifle performance to hunters, target shooters and competition shooters who need consistent ballistics and feeding, with 40 grain copper-plated round nose bullets that deliver a muzzle velocity around 1250 fps and muzzle energy near 139 ftlbs for predictable trajectories and terminal performance. This brass-cased, noncorrosive load is well suited to small-game hunting and precision rimfire practice, offering smooth cycling in bolt-action, semi-automatic and lever platforms and consistent grouping for zeroing and match drills. Shooters who run high-volume range sessions will appreciate the rounds balanced weight and round-nose profile for reduced barrel wear and reliable magazine feed, while competitive shooters can count on uniform velocities to maintain point-of-impact through strings. Made in the United States, the Field Dynamics line is intended for those who want a versatile 22 LR option that blends economics with dependable on-target results across field work, plinking, training and rimfire competitions.