A Forestville man who fired 50 rounds of ammunition from his home Thursday night, drawing 60 police officers to the scene, yesterday was charged by Prince George's County Police with assault with intent to murder.

Ronald Dale Henderson, 35, who kept police at bay for more than three hours Thursday evening before surrendering, was being held without bond yesterday in the psychiatric ward of the Prince George's County Detention Center in Upper Marlboro.

Police said he will soon be transferred to the Clifton T. Perkins mental hospital in Jessup..

According to police psychiatrist Harvey Goldstein, Henderson was a former Vietnam prisoner of war who suffered from post-traumatic stress disorder. Goldstein said Henderson was a psychiatric out-patient receiving medication. During the incident, he said, Henderson was "straddling between reality and fantasy."

Goldstein said Henderson told police negotiators who persuaded him to surrender that he thought he was alone in a Vietnam bunker during an air raid. Goldstein added that he didn't think Henderson wanted to hurt anyone. "He was an expert sniper and could have killed someone if he wanted to," he said.

No one was injured during the incident. Henderson's wife and two children, a 3-year-old girl and 11-month-old boy, left the house shortly after Henderson barricaded himself in.

County Police Chief John E. McHale said several rifles, shotguns and handguns were found in Henderson's house.

Henderson, a security guard for the housing development where he lived, told negotiators he had been assaulted at times while on duty. He also told them he had had problems with the Veterans Administration.