A southern Alberta woman has been sentenced to four years in prison for the shooting death of her husband.

Heather Wilson Duncan was found guilty of manslaughter last week.

Her husband Barry Duncan died in the couple's Sundre-area home after he was shot in the face in December 2010.

The couple had been drinking heavily all day. She said he handed her a loaded gun and told her to shoot it.

Duncan testified in court the gun went off accidentally.

She was found not guilty of the original charge of second-degree murder.

There is a mandatory minimum four-year sentence in manslaughter convictions involving a firearm.