I'm looking for manga about cowboys i know it involved dueling and that there was a big dueling tournament held and that the main characters didn't want to get involved in. I also know that at one point the main character and his allies got locked in a prison town and had to win a fight with some chick to get there freedom.

I've read these a long time ago, I'm not sure if they fit your criteria but I do know there's a lot of action going on.
Gun Blaze West
Miriam
Emerald

[img]http://img803.imageshack.us/img803/6167/avvy.png[/img]
Rape is imminent.

Peace Maker?

Hey thank RIP131 it was Peace Maker and thanks brucie for replying.