I assume you are talking about rifle ammo(cartridges). Both federal and remington make special ammo for reduced recoil,federal's offeringsis called managed recoil and remington's offerings are known as reduced recoil. Both are available in several different cartridges. Yes,they have less fps(speed) and energy,but they're loaded with special bullets designed to expand at lower velocities. They are good out to about 200 yards but you will need to recheck your rifle's zero to ensure you'll be able to hit with these loadings.