Re: Twist rate ?
Optimum twist for 150-168's will be 1-13x. If you think you will ever shoot anything heavier, then go tighter (12x for 180's and 190's, 11x for 200, 210's and up to the 220 and 10x for the 240). If you KNOW all you ever want is up to 168, go with what is optimum which is 13x. I am one that believes in spinning a bullet to a point of proper stability and nothing to little more. My target SF is 1.4-1.75. This offers the best accuracy, minimizes spin drift and maximizes long term BC potential. Most shooters agree that up to 2.0 is OK. Throw a 10x in that 300 and shoot 168's you will be approaching 3.0. Keep the 10x for the 220 or 240's.
Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Last edited by Michael Eichele; 09-25-2009 at 10:27 AM.