If it's the short Super Mag with a turkey tube, I'm guessing it's got rifle sights on it too for turkeys? Just take that turkey tube out, throw in an IMP CYL choke and go buy some cheap rifled slugs. Many guns group the 15-for-$10 Winchester SuperX slugs well. Take them to the range and see how it does and adjust your sights for your group. Just don't shoot slugs through your turkey choke.
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