No matter what you put in your sights, prairie dogs, tin cans or a target, Remington offers the perfect 22 rimfire ammunition for any occasion. Remington rimfire ammunition delivers the quality you expect. That's because they put the same level of care into making the rimfire ammunition as they do their centerfire ammunition, so you'll get the maximum performance from every shot. Specifications: 22 LR/40 gr/Round Nose (RN)/50 Bx/100 Cs Caliber: 22 LR Bullet Type: Round Nose Bullet Weight: 40 gr Muzzle Energy: 140 ft lbs Muzzle Velocity: 1255 fps Casing Material: Brass