Yesterday I wanted to shoot a few shells with Fiocchi primers to see if the results were the same. In the Fiocchi hulls are 616 primers and in the Winchester HS hulls are 615 primers. I am still getting dimples with a point but they don't look like the Winchester 209s did and the gun opened without any effort at all. The indentation in the primer on the far left actually looks shallow.

I pulled the pins to measure them and they are .446" (L) and .458(R), maintaining the difference that I got when measuring how much each protruded from the breech face.
