I dont know how things are down in the usathat well, other than every one seems to be huntin with bows these days. What I tell you is that I believe British Coloumbia is where you wanna be. Up north on public land areas bigger than some european countries you can fair chase bull elk from Aug 15 to the end of October. I think 3 point min Aug 15-Sept 10.Usually after Sept 10 it goes to 6 point min. You can use you rifle through the whole shibang but the big catch is you need an outfitter and it will cost big bucks. Most of these outfitters have something like 80 percent success on 6 point bulls, and may give you a moose or caribou off the same mtn. Tags are unlimited.
Down south, just north of the montana border, same thing rifle/bugle hunts but dont start till begining ofSept.and 6 point bulls only, through to end Oct. Tags are unlimited.
Believe me when i say you have to hide from all the 5 by 5s out there. If it aint cold, your not high enough.
good luck,
Happy Hunting