I was shooting a newish SxS this weekend. It appears that one or more of the firing pins were dragging across the primers making the gun difficult to open. The pins are separate from the strikers. Everything went fine when I shot shells with soft W-209 primers but hard primer made the opening more difficult. Is there a "standard" length that firing pins should project through the breach face? I've heard something like 50-60 thousands.

The only constant in life is change.