use IMR 8208 XBR on the following:
6mm Dasher Norma: 26 inch 8 twist MullerWorks barrel, 80 grain Berger Flat Base .105 FB 31.5 grains goes 3105 fps SD of 9. less than half MOA. Also shoots a 105 Berger VLD Hunter at 2909 fps with 31.7 grains right at the lands and shoot better than the 80...