I ran the numbers through the Berger twist formula, which is normally accurate, especially when it indicates there's no way a certain bullet will stabilize in X twist. But there are mysteries in twist that formulas can't answer, especially typos in manufacturers specifications--and the length I used for the 45 TSX came from the Barnes website. I don't have any 45 TSX's on hand. Could you measure one?


“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck