There are lots of amazing Western movies that have swept audiences away with their powerful portrayals of cowboys, bandits, and outlaws, that, when looked at from a historical perspective, are totally inaccurate. As a genre, the Western has usually been more focused on delivering fast-paced entertainment than a completely accurate representation of life in the Wild West. In the process, the depiction of bounty hunters, Native Americans, weaponry, and women can often suffer from a realism problem.

https://screenrant.com/western-movies-great-historically-inaccurate/