The speed of the shooting of an electric-powered sniper rifle is related to the muzzle velocity. The muzzle velocity can be different for different products. For example, conventional electric-powered sniper rifles come with the typical muzzle velocity of 400fps. This can be called fast speed, yet it is not capable of causing severe injuries. The muzzle velocity of the electric-powered guns is also related to the weight of the BBs. Some examples the electric-powered sniper rifles with excellent muzzle velocity are LT-15T M4 SD Metal Gear AEG Full/Semi-Automatic Airsoft Rifle Gun, Colt M4A1 CQBR Dark Earth Combat Electric Powered Airsoft Gun, and HK Heckler & Koch HK416 AEG 6mm BB Rifle Airsoft Gun