Byrna Pepper Projectiles 61 Caliber Compact Launcher Ammo - Byrna Pepper Projectiles contain a blend of Oleoresin Capsicum (OC) + PAVA making it one of the most powerful pepper projectiles on the market. Physical effects: Burning in throat Wheezing Gasping Dry cough Shortness of breath Gagging Inability to breathe Increase your confidence while keeping yourself and your family safe.