The length of the shell is measured as a new empty shell or after it is fired.... NOT a live unfired shell.
Th length of the chambers was likely to have been 2 9/16" or 2 1/2"
I think Parker began chambering their 12 gauge guns around the time yours was made at 2 5/8" to accept the 2 3/4" shell.
The belief was that the shell should actually open as much as 1/8" into the cone for a better gas seal to provide better patterns and a harder hitting load.
.
__________________
"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
|