It seems to me that there are three sub-genres of Western themed role playing games:

Realistic,
Cinematic, and
Weird West.

The core rules of Grit and Bullets 2nd Edition was designed with realism in mind, although I don't know how realistic any RPG can ever be. The Characters are heroic but not super human. They are competent but not incapable of error and failure. In fact the Characters are rather more vulnerable as compared with other well known role playing games, and can suffer debilitating wounds that take time to heal. However, if you want to play a more Cinematic or Weird West game there are optional rules to be found in the Appendix area at the end of this booklet that hopefully will provide you with what you are looking for.