400

Why did I know you'd chime in !!!

Glad you did as always.

I have seen people condemn rifles because of it,
I now expect it, especially since I have no had
so many with this same "issue" it is now fixed
by my gunsmith before I even go to a range.

I agree very much about one thing
"The firing pins probably need to be re-shaped and re-radiused by a smith who works regularly with DRs."

with the emphasis on
"by a smith who works regularly with DRs.