Tru-lock, Primos jelly head, Mossberg X-factor, Non ported undertaker, Star-dot. All of these are very good with lead and I think they do real well with lead #6's. All are available in .665 except for the X-factor is a .670. Tru-lock, Jelly head, X-factor are in the 40's, and you can get undertakers pretty cheap from ebay. I seen a guy had some on there the other day for 12 bucks free shipping. Keep your birds 40yds and closer and I think the right #6 shell will kill with any of these chokes. Try winchester 3-1 7/8-6 gray box, winchester 3-1.75-6 hv black box, or 3-1 7/8-6 fed strut-shok(turkey-thug@wally world). All of these are around $10box. I have had real good luck with all of these in mossbergs. I like a gun that likes cheap chokes and cheap shells lol