Jayke Fleury, 27, was refused bail in the ACT Magistrates Court on Thursday over accusations he discharged a 12-gauge shotgun through the lounge room window of the Griffith unit on Tuesday night.

The court heard the alleged shooting occurred after a fight between Fleury and the complainant at a Deakin home on Tuesday night.

The long-term girlfriend of Fleury is the cousin of an ex-girlfriend of the complainant.

That relationship was described as ''very strained and hostile'' in a police statement of facts tendered in court.

Police allege Fleury threatened to shoot the complainant during a brawl at Deakin about 10pm, according to the court document.

''I am going to kill you. I've got a gun and I'll shoot you right now, you c---,'' Fleury allegedly said.

The complainant then went home

to his Griffith flat and went to sleep on a mattress on his lounge room floor. He was woken about 2am when a round was allegedly fired through the window.

Police say he opened his eyes and saw a ''bright yellow flash and dust and powder in the air''. The round went through the window and into an inside wall.

The complainant was not injured, but police say the trajectory of the shotgun pellets meant they travelled straight over the mattress on which he was sleeping. On Wednesday, police raided Fleury's Deakin home and allegedly seized three mature cannabis plants, four shotgun rounds and a 12-gauge shotgun stored in the roof cavity.

The court heard the firearm is currently undergoing forensic analysis.

Chief Magistrate Lorraine Walker refused bail, saying the accused posed a flight risk, could commit more offences or tamper with evidence.

Fleury's supporters left the court yelling that the police had it all wrong. Fleury is due to reappear in court next week.