The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge weight to ensure they deliver consistent ignition for every shot.Next are the propellants, which are specially formulated to meet federal's stringent specifications.These clean-burning powders are of the highest grades in the industry.They're consistent and reliable.Shoot at the highest levels of rimfire competition with gold medal.The rounds are built with precision bullets and ultra-tight tolerances that ensure peak performance and consistency.Caliber: 22 LRBullet Type: Lead Round NoseBullet Weight: 40 grMuzzle Energy: 128 ft lbsMuzzle Velocity: 1200 fpsCasing Material: BrassSub Brand: Gold MedalRounds Per Box: 50Boxes Per Case: 100Hazair: Yes