Gavin Barnick is a junior rifle shooter and competes in air and small bore rifle. Barnick is on the rifle team for the University of Alaska Fairbanks.
- 2022 World Championship, Gold, JR Men's 50m Rifle 3 Position Team
- 2022 Rifle National Championships, Bronze, JR Men's 50m Smallbore
- 2021 JR World Championship, Bronze, Men's 50m Smallbore Rifle Team
- 2021 JR World Championship, Bronze, Mixed Team 50m Prone Rifle
- 2021 JR World Championship, Bronze, Men's 50m Smallbore Rifle
- 2021 JR Pan American Games, Silver
- 2019 JR Air Rifle Championships, Silver