And, of course, not to shoot it at his DP and director.
That's the thing anyway, it's an amateurish look to have the muzzle pointed directly at the camera, particularly a Western where so often the draw is filmed in a deliberate motion as the exposition. Pointing a gun directly at the camera breaks the 4th wall. Find any gun scene in any Eastwood-directed Western - no guns directly fired at the camera. Souza is no Eastwood but anyone still directing at 50, it doesn't seem like they would have blocked a straight muzzle shot.
Which unforunately lends some credence to the suggestion that Shooter Baldwin was fooling around.