Hence the choice when getting your uniform items, period correct or Hollywood correct?
The same goes for Cowboy action shooting. I either wear my 1870s uniform which includes from the head down, Kepi, Canvas pull over shirt or a period correct gray shirt that was made for me by Leta at Coon Creek, Canvas pants with Saddle seat also made by Leta for me, and EarthWalker Black Calvary Boots.
Or my turn of the century uniform, Montana Peak hat, Pull over tan military shirt, joplin pants and the same eathwalker boots(which are not a real part of the uniform since they had gone to the brown shoes/boots and canvas gaiters or even for some period they ad leather gaiters.
The only time the clothing is important is the side match where you are portraying one of the characters from the final scene of the movie, namely one of the four of the WIld Bunch not the other side since it is a four man/woman team event.