Some gents say I am nuts or forgetful, but when I was a kid my Grandmother let me use my deceased Grandfather's 16 gauge, M-37 Ithaca pump gun. It had a solid rib and I remember it as yesterday (most all my buddies had single barrel shotguns). Anyway, the regular 2-3/4" shells would hang up in the ejection carrier and I had to pull them out with a finger. I searched the hardware stores, neighbors, etc. for the older 2-9/16" shells, which were very hard to find in the early 60's. Otherwise, I had a single shot pump gun. I authored a thread on this a while back and everyone told me the solid rib 37 was introduced well after the 2-3/4" shells were standard. No, the ejection carrier wasn't bent. Oh yeah, it said Ithaca on the barrel, not Remington. The port in the gun was just a hair too short for 2-3/4" shells. Silvers