Originally Posted By: Researcher
Ithaca added one when they brought out their Magnum-Frame NID in 1932.


That would seem to refute the business about strength.

It does add additional bearing surface to the frame/barrel set interface.

Engineers put lightening holes in just about everything.

Why would a shotgun frame be any different than, say, a bridge when designing for bending load? They don't always make those solid you know...

"The price of good shotgunnery is constant practice" - Fred Kimble