The 165 grain Matrix is shooting well out of my Tikka, which has a 10" twist. The bullets don't seem to have any trouble stabilizing. I have not shot the 175gr Matrix, as I'm not sure how they would do. I have tried a number of different powders and Retumbo seems to work the best as far as accuracy and consistent velocity. I am sure I could load hotter, but I am getting 2,825 fps, which I am happy with.
The 165 grain Matrix is shooting well out of my Tikka, which has a 10" twist. The bullets don't seem to have any trouble stabilizing. I have not shot the 175gr Matrix, as I'm not sure how they would do. I have tried a number of different powders and Retumbo seems to work the best as far as accuracy and consistent velocity. I am sure I could load hotter, but I am getting 2,825 fps, which I am happy with.