ACOG scopes are good for long-range shooting, typically out to 800 meters. Now there is definitely a lot of skill that goes into hitting an 800-meter shot. So don't expect to buy an ACOG scope and be shooting like Chris Kyle the next day! ACOG scopes offer a combination of compactness, clear optics, and durability that make them a favorite among many shooters. By magnifying the target, the ACOG allows the shooter to more accurately place shots at longer ranges.