The Remington .22 LR 36-Grain Lead Round Nose Rimfire Ammunition - 550 Rounds is .22 LR caliber and weighs 38 grains. It has a velocity of 1,080 FPS and includes 550 cartridges. Remington .22 LR 36-Grain Lead Round Nose Rimfire Ammunition - 550 Rounds - Rimfire Shells at Academy Sports