GETTING MY WINCHESTER PRIMERS #209 TO WORK

A new query that's been raised is why do K80 firing pins get toasted by Cheddite primers although my Huglu Turk created DeHann eats them for lunch? Spring strain? Shape in the pins? Click to extend...Just because the Cheddite and Winchester primers are labeled 209 won't mean they can be used interchangeably. The 209 means absolutely nothing with re