Most of the problems in interior ballistics have been pretty well understood for some time now.  But, some of the remaining unsolved problems pertain to the match bullet itself—including (1) improving the balance, symmetry and uniformity of our best match-grade bullets; (2) avoiding core stripping at the fast twist rates required for gyroscopic stability with long, heavy, high Ballistic Coefficient bullets; and (3) overcoming the difficulties in ensuring that the long-nosed, high BC bullet always enters the rifling coaxially aligned with the bore.  I address this latter topic in the following articles: