I killed my first turkey with a Mod. 11, full choke in the '80's. I didn't have turkey loads so I used a high-brass Federal duck load. Those duck loads gave me acceptable patterns out to about 30yd. Killed that jake stone dead at 25 yd.s. I've never been prouder. I'd try a Win HV #4. Those old 11's had pretty tight chokes to shoot old paper shells with no shot cups.