#2Pdr

Previously, we discussed the benefits of and challenges facing saboted projectile ammunition, including the advantages of decoupling the diameters of the bore and the projectile, and the problems of accuracy during sabot discarding. One concept that could possibly provide many of the benefits of saboted projectile ammunition without the drawbacks is the idea of having a malleable projectile that is forced through a conical section of bore, squeezing it down to a smaller shape. This increases, to a degree, the swept volume of the barrel, while not requiring any discarding sabot and not producing “wasted” energy that goes into propelling the mass of the sabot out of the barrel.