A bit odd perhaps (so what's new?) but I enjoy vignettes of Revolutionary War British soldiers marching abreast with their muskets and long bayonets, then firing in unison. To stand in a line, wearing bright red, with a white X to mark the center, face to the enemy, shows a lot of cahoonies if you ask me.
My favorite rifle scene is the long shot hitting the bucket in "Quigly Down Under"....
Zulu is a fine movie as well....
What really puts me off are westerns where a bad guy misses a 30 yard shot with an aimed rifle and the good guy fires back from his saddle while galloping at an incredible range with his six shooter mortally wounding the first shooter.