Gameplay is awesome; I never thought that reloading in a video game would be so addictive, and toting 2-3 single-action revolvers will make you feel like a force of nature. 

 One bug (or feature) I found is unloading guns like the double barrel, derringers, and single-actions will give you more ammo than what the cap at the bottom right of the screen says.

Overall, I'd rate this a 10/10!