I have not watched this one yet but picked it up from someone and didn't see it here so now its here. 
 
https://www.imdb.com/title/tt0041811/

Storyline

An undercover army officer investigating the theft of army gold shipments takes a job as deputy in a small town that's being terrorized by what they believe is the ghost of a gambler who was wrongly convicted and hanged for those robberies. 

User Review

The Abiline Kid is set up and convicted by a Kangaroo court for using marked cards. Executed by hanging, he seemingly returns as a ghost to terrorize and wreak vengeance on the guilty town that murdered him.

Rimfire is loaded with great character actors, including James Millican, Reed Hadley, Jason Robards Sr., and Fuzzy Knight, alongside two previous Universal monsters, The Werewolf Of London's Henry Hull and Glen Strange, the last of the classic Frankenstein monsters!

Although it's running time could (and should) have been stretched a little for greater suspense, this is still an entertaining, if compact, western whodunit with lots of great scenes.

It can also be viewed as sort of a forerunner (along with Django Il Bastardo) to Clint Eastwood's High Plains Drifter. In fact, the three would make a great triple feature.