"His life has been turned upside down," District Court Judge Sean Grant said, referring to the man's victim impact statement.

Keighen Charles Lloyd's actions on November 22, 2019, constituted "an incredibly serious act of intimidation".

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"People should be safe in their own homes," he said before handing the 22-year-old a five-year jail term.

"The conduct was confronting to the extreme."

Lloyd and his younger brother, Joshua, wore ski masks when they forced entry to the victim's Pioneer Drive home about 12.15am.

Keighen Lloyd demanded the man's firearms - he had three pistols in a gun safe in his bedroom and six rifles in a gun safe in a shed - as he held the gun under his chin.

After a scuffle with the brothers the victim, who feared he was about to be shot dead, ran to his laundry to release his dog, which chased them from the house.

Before they fled, Keighen Lloyd fired a single shot into the house.

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This final act, Judge Grant said, added to the trauma suffered by the victim, who has since lost his foster children and has been regularly counselled by a psychologist.

The man, the court heard in Albury on Monday, was shaken to find the round fired by Lloyd had lodged in the wall just above a five-year-old foster child's bed.

The children weren't home.

Judge Grant's sentencing of Lloyd took into account a psychologist's report, which concluded he had "low cognitive function" and intelligence.

Lloyd had a significantly deprived childhood, had regularly witnessed his stepfather - a criminal with a "serious drug addiction" - assaulting his mother and had been attacked himself, being punched and kicked and verbally abused.

He had become a heavy user of cocaine, methamphetamine, cannabis and alcohol as an adult. He downed 36 standard drinks on the day before the home invasion.

Lloyd was given a non-parole period of three years and four months on charges of break and enter and commit serious indictable offence with a weapon, firing a firearm with disregard to safety, possess unauthorised and prohibited firearm and possess a shortened firearm without authority.

He will be released on March 24, 2023.

Joshua Lloyd will be sentenced on March 2.