I understand what your thinking.
But what the others said about the hevi 6 shot.Just use that for follow ups.I missed a bird with the hevi 6 shot,He was to close bout 12 yrds.I then knocked him out of the sky while he was escaping at bout 30 yrds with a body hit!!Broke his wing bone etc!!!Fell from the sky stone dead!!!
Good luck this season,and keep it loaded with all the same shell.
U arnt gonna beat heavy six shot,only thing im seeing on paper Thats close is the hevi 13 magnum blend with #5,6,7 shot 2oz.3"shell. Havent tried it yet on turks,just did pattening with it.It rips thru ply wood just like the heavy13 6 shot 2oz but this has little more pellets where u want them.