I was hoping someone could help me because most of my friends seem clueless on this subject. I have a Benelli Super Nova 12 gauge which was shipped with 3 choke tubes (I think one is IC and M, not sure about the other). What choke tubes are safe to use with slugs? Can I shoot slugs or buckshot through the bare tube with the choke threads exposed? Don't want to damage this fine shotgun or myself. Thanks in advance for the help.