Quote:
but they are also the smallest and have short chambers (necessitating either a modification of the gun or 2 1/2-inch shells).


My 1913 Model of 1912 20ga has unaltered chamber and ejection port, and it works just fine with any 2-3/4 shells I have used. Mine was also a well worn beater when I acquired it, but it has the 25 barrel with solid rib, full choke, now reblued and fitted with modern Win factory checkered wood. Original wood boxed up for the next owner.