When I tried the test rounds and felt the increased resistance I dropped a round in the chamber with the action open and it was up the length of the neck. no engravings on the bullets. Since the bullet is a hollow based bullet I pulled the de priming rod and sized a couple test rounds back down these went in from gravity into the chamber. Pain having to raise them with a cleaning rod though. I also measured to see if I had created a small bulge with the very light crimp I had applied.

44-40 brass is thinner than a lot of brass a plus sealing chamber and sizing ease. But it also expands around bigger bullets rather than size the bullets down. My brass measures around .007 thick in the necks.