Hi I am going to purchase a new marlin lever... this will be my bush gun for moose, elk, anything else I decide to hunt in the bush!! I am going to go with open sights, I also am not a reloader. Should I go with the 45/70 or one of the marlin calibers. Ammo cost is a concern as I shoot all of my rifles frequently. Also what is the range and long distance accuracy like with the 18.5" barrel. Thanks for your help all !!!!! Scott