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Talley was found guilty of involuntary manslaughter and possession of a firearm during the commission of a crime in connection with the July 26, 2009, death of 19-year-old Lane Alan Gann Jr. of Acworth.
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Talley's attorney argued the shooting was an accident and that Talley, who said she carried the rifle for protection from a man who allegedly threatened her sister, was not intoxicated, although evidence indicated she had been drinking.
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The .22 Magnum round, fired by Talley who had her boyfriend's rifle at an Acworth party, killed Gann almost instantly. His heart was perforated several times.
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The two had been discussing the firearm, and witnesses said Gann, who thought it was a BB gun, issued a challenge to fire the weapon, which is designed for small game hunting.
