Originally Posted by
villiers
Whoever Gen. Hatcher might have been, his experiment proved conclusively that cases in chambers that seal at the case rim need to be the correct length in order to achieve regularity and effectiveness. The shorter cases will show burnt powder residue from gasses escaping to the rear. The experiment would furthermore show with absolute certainty what is to be expected, that the action does not cycle correctly and the round will almost certainly not achieve the same ballistic properties as with a case with the correct length.