My daughter is 21 and up until recently had no interest in hunting. She just finished her hunters safety and has been going to the range with me at least once a month. The problem is she is left handed and all of my rifles are right. So I have decided to build her a rifle that fits her. I have been collecting parts and other than a stock have everything ready to ship off to the smith. I am at the point of choosing the chamber. The barrel I chose is a Krieger 6mm 1:8 twist #3 contour. I think I am going to go with a 22" finish length to keep it light and easy to handle. The action is a Rem700 SA and I'll be running factory BDL bottom metal. I've narrowed it down to .243 and 6 Creedmoor. Which do you think would be better in this set up? 6 Creedmoor looks like it will get better velocity, but I've never seen numbers through a shorter barrel.