The late Mike McIntosh in one of his books on doubles mentioned this problem with a few early production NID guns- something about the radius of the top bolt where it cams into the top rib extension, if memory serves.

25 years ago maybe, I owned and shot a 12 Super Fox HE-- no problem with 2&3/4" Federal Premium loads, but when I went to the same loads in 3"-- the top lever would move out of battery when the gun was fired-- Go figure.. RWTF


"The field is the touchstone of the man"..