I am going to set my 14 yr old daughter up with a semi-long range rifle. I am trying to determine weight & caliber that would best fit both long range shooting and hunting scenerios. I am thinking of the 260 Rem, the 270 win, or the 6.5x284 Norma. I would like to keep the weight at 8lbs or slightly less minus the glass. She is quite a shot and loves to shoot. Last evening she drilled a bedded whitetail buck with my 7mm08 at 233 yards in the brisket (a 9") target right at last light. So, she has great fundamentals including a trigger finger and patience. This was her 5th deer, each getting farther out and growing in confidence. So what do you think?