User blog comment:WraithOfWaffle/Battle Thirteen: Chamberlain Gangster Families (Grand Theft Auto V) vs. Water Street Gang (Sleeping Dogs)/@comment-5795750-20140902131850/@comment-4552610-20140904135901

He is using the stats of the weapons in-game. i.e. if the game's 9mm pistol has a magazine capacity of 12, we're going to use 12.