RE: What cartridge for what range??
#1. Lever gun in what ever cartridge you choose. I am partial to the 444 Marlin.
#2. Ruger frontier or Steyr scoutin 7mm-08, .308, .376 Steyrwith a low power, variable, extended eye relief scope mounted foward over the barrel.
#3.Standard bolt gunis something like a 7mm-08, 25-06, .270 etc with a 3-9X40 mounted low over the receiver.