While John Ford and Howard Hawks received all the critical plaudits, Lesley Selander quietly went about his business directing some of the best westerns of the 1950s. In Selander's Shotgun, deputy sheriff Clay (Sterling Hayden) embarks upon a long, vengeful journey to track down Thompson (Guy Prescott), the man responsible for his boss' murder. Packing a sawed-off, double-barrelled shotgun for this purpose, Clay also carries a rifle and sixgun for such "lesser" threats as marauding Indians. Rescuing half-breed Abby (Yvonne de Carlo) from certain death, Clay takes her along on his manhunt, and later the two travellers are joined by bounty hunter Reb (Zachary Scott), who intends to get to Thompson first to collect the reward on the fugitive's head. Naturally, a bitter romantic triangle arises involving Clay, Abby and Reb, but this is briefly set aside when Thompson is finally cornered.
~ Hal Erickson, All Movie Guide