Any consensus on what hollow base cavity shape is most likely to yield accuracy with mild pistol target loads or does it even matter? Looking around I see deep cones, elliptical, and hemispheric HB cavities. I know MP did at least one run of a HBWC that came with different pin shapes. I am aware that the pressure ceiling will be dictated by the thickness of the skirt (too high and they excessively deform or blow off). Might be up for some R&D.