I gave up buying chokes for my Remington 1100 20ga. Mine was converted by a smith to handle 3" shells, ported and forcing cone removed. Mine is the older style RSF "lead only" and has consumed well over 150 Hevi-shot variant shells. 120's with Fed #6's, 150's with Fed 7's, 180's with Hevi 7's. No problems. The Federals seem to stone the birds a little harder than the Hevi-shot, IMO. I wish I could find the time & energy to load some TSS. I think 8.5's would be perfect as #9 is banned for turkey in New York.