I couldn't trace this thread back to the original post but it
appears to have been regarding a Remington 1100 Magnum's
ability to shoot 2-3/4" shells. I have one too and, as Scott
said, mine will cycle with 2-3/4" magnums and some 2-3/4" high
velocity shells. It will not, however, cycle with low velocity
or skeet loads out of the 3" barrel. Apparently, a little
known fact about these guns is that you can install a
conventional 2-3/4" barrel on the magnum receiver and they will
cycle perfectly with the lightest field loads and mine does.
This fact is not advertised in any Remington catalog nor have I
seen it mentioned in any gun magazine. I therefore didn't
believe it the first time I heard it. I asked several
gunsmiths who confirmed that it would work. Still not
convinced, I wrote the Remington factory and they said yes it
worked fine and was perfectly safe. I immediately went out and
bought a 26" IC barrel for mine and have shot probably a 1000
2-3/4" light field loads through it at doves and don't recall
over one or two failures to feed. I think this makes the 1100
magnum a pretty versatile gun. I also bought a 2-3/4" slug
barrel with rifle sights for it and it also works great.
Dave LeGrande