Nice concept! Maybe its a skill issue but the varying inertia really threw me off. Like without the cards it would have been too hard and with them its too easy? But a lot of scope for further development. Add a sandbox so that people can practice the inertia of each gun. Also Is there scope for a multiplayer? Like a cowboy standoff? Something to think about if you take this further...
I did have more ideas like an endless mode, or it could even be fun as a multiplayer party game where you try to shoot ur friends. Not sure if ill get to it tho.
