At about 29min 30sec in, Logan is shooting at bottles. The bottles very visibly change, with a blue bottle appearing and two white bottles disappearing. The clear glass remains, no white glass is present. The change in the shot is very awkward and may possibly be deliberate.
In the same scene where Logan is shooting the bottles, the LeMat he is using is a 9-shot cap-and-ball cylinder. This type of weapon does not use bullets, but rather powder and ball, where the hammer strikes a percussive cap. However, it is very clear in the closeup that the LeMat does not have any firing caps over the "nipples" of the revolver's cylinder.