WTB Custom long range hunting rifle, Lighter is better. Would like to be able to take down an Elk or Muley at 600-800 yards. Please let me know what you have. Open to caliber as I will be hand loading. Do not want 300 Win mag or above. Would like a manageable kick. In addition, I will be using this to hunt Whitetail in Georgia after I go out west a few times. So a larger caliber is not necessary here. Thank you.