Some have mentioned accuracy to 300 yds . My son , a former Marine always had to qualify to 500 yds , open iron sights . He became a 6th level expert shot . That means he qualified 6 times expert in a row .
A few yrs earlier he was representing his company at the battalion shooting matches in Okinawa . A " Gunny " from the Marine Corps shooting team took him aside , told he that he shot well , but he was going to teach him to shoot his weapon better . That bit of training that day made the difference for him .