i have a browning citori special steel 2.75 and 3 in. with ported inv chokes in skeet.we have to shoot doves this yaer with steel will i need to get i/c or are the skeet chokes ok,also have an ithaca model 680 in 20 ga. that my younger son shoots the barrel is imp/mod will it be ok to shoot steel thur this gun. i shoot an old wingmaster 20 ga on a 12 ga frame it has a 28 in plain barrel in mod will i be able to shoot steel .