The Barrett Sniper Rifle was a large-caliber sniper rifle with powerful firepower. The specific power depended on the type of ammunition used and the shooting distance. Generally speaking, the Barrett sniper rifle could use a variety of ammunition, including armor-piercing bullets, high-explosive bullets, and incendiary bullets. These bullets could cause fatal damage to the target from a long distance. For example, armor-piercing bullets could penetrate a 20-millimeter-thick steel plate at a distance of 1000 meters, while high-explosive bullets could cause great damage to people at close range. It was important to note that the Barrett sniper rifle was a very dangerous weapon and could only be used by professionally trained personnel. When using it, you must abide by the relevant safety regulations to ensure the safety of yourself and others.