Feels like a lot of different buttons to press for very little reward. I think the idea is good and could be fun, maybe by paring back some of the other mechanics. For example, why does the player need to separately designate a target and fire?
Viewing post in BULLET REVOLVER dd jam comments
Depends on how many other ideas are competing with this one. I think it's worth iterating on a little bit and leaning into the reloading mechanic. If it works, there are plenty of other firearm actions that would lend themselves to your game: leverguns, pump shotguns, and others I'm sure you've thought of.
About 1/3 of my firearms are revolvers so I might be biased.