Here's my delima. I load on a Tru Line Jr. press using 310 dies. My son-in-law shoots .40. There is not a .40 310 die set unless the 310 shop makes one for me.
The rifle bullet for a 38-40 is the same size (diameter and weight) as a .40 pistol bullet.
AHH HAH!!!! there is a 310 die that is for 38-40 rifle. I am thinking decaping would require some care, case resizing would be limited to neck (or mouth) resizing, but seating and crimping should work, so, Could the rifle dies be used to load a pistol round?