This particular spaghetti western which I obtained as part of 20 DVD package came to me under the title of Savage Guns which I will use in place of the original Italian name. It plays more like a modern gangster film than a western.
The genesis of the storyline is that our hero Robert Woods was the only one who escaped a massacre in a saloon where the villain Dino Strano and his gang shot a bartender who had informed on them to the authorities. But instead of maybe waiting for him outside and just stabbing or shooting him, no these guys go into his saloon and shoot the place up and kill everyone there. Or so they think. The rest of the film is Woods looking to even things with Strano.
In fact Strano and/or his gang do this all the time. And they must have six guns that hold about 20 rounds each the way they kept firing. Reminded me of an episode of the Beverly Hillbillies where when the Clampetts by a movie studio they remark about how all the cowboys have those Hollywood guns that never seem to need reloading. Jed wished his hunting rifle operated that way.
It also reminded me of one of my favorite films Casino where the character of Tony Dogs shoots up a mob protected place for kicks as well as robbery and massacres everyone there. Joe Pesci takes vengeance on him quicker than Woods did with Strano.
For mindless gratuitous violence if that's your thing, you can't go wrong with Savage Guns.