Like several types of ammo, the 9mm comes along with a full metal jacket, complete synthetic jacket, lead round nose, or jacketed hollow point. Some manufacturers state that their 9mm ammo is subsonic, which means the bullet’s velocity isn't as much as the velocity of audio. Navigating the volatile ammunition https://tacticalrounds.com/product-category/home-defense-shotgun-ammo/non-lethal-12-gauge-ammo/