try er out...cant hurt! might not swing well...but you can try. i learn to shoot trap with a single shot 20ga with a full choked barrel and high brass #6 shot. it was backyard trap with a thrower...but thats how i learned. i honestly think that how i got to be decint at it. if you can bust em with a full choke and highbrass 6s a IC and 7 1/2s or 8s in a 12ga seems easy

im not the greatest...but i can hold my own. dad still says thats my gift and i need to pursue it....trap, sporting clays, skeet...i just bust them clays...first time i went skeet shooting i held my own shooting with my buddy, who shot atleast once a week since he could hold a shotgun...

i got a pic laying around somewhere of me shooting clays with a mossberg 590...id say you can definently use your coach gun