Jared Malcolm

I recently traded some stuff and got my first Benelli Shotgun. It's the Nova (non tactical) in black. I have an issue now where it sticks when loading another shell. I tore it down last night and cleaned/lubed everything and didn't see anything obvious. Does anybody have any suggestions to check. It gets tight in that last 1/4" of loading a shell. If any additional info is needed let me know.