Oregon 5-Year-old Shot in the Stomach - Daddy Was a Felon - No Special Treatment

Local news reports A five year-old Medford boy was shot earlier Saturday morning in what police are calling an accidental shooting. According to the press release medical and fire crews responded around 8:30am Saturday to the home on West Jackson Street in Medford. The boy sustained a gun-shot wound to the lower abdomen according to the press release. Police detectives were called to the scene. During the course of the investigation detectives learned, according to the press release, that the boy found his fathers pistol. The boy's eight year-old sister attempted to take the gun from the boy when it discharged striking the boy. As of 1:30pm Saturday the boy is in stable condition. The boy's father was revealed to be a convicted felon and not allowed to own a firearm. He has been taken into custody on these charges: assault 3rd degree, recklessly endangering another and felon in possession of a firearm. The video said it was a black-powder pistol.  Is that even possible? Can those things be stored loaded and ready to fire?