Johnson County Sheriff Steve Kozisek (KAHS'-eh-sec) says the bullet struck Richard L. Fipps, of Sheridan, in the arm on Monday.
The injury is not life-threatening but Fipps is being treated in a hospital in Billings, Montana.
Kozisek told The Sheridan Press (http://bit.ly/1sMfrgZ ) that Fipps and two others were in a remote area trying to move a vehicle that had become stuck. Fipps was standing beside his truck when he told his dog to move from the front seat to the back seat.
The sheriff says a rifle was on the back seat and it discharged toward Fipps.