I've had great luck it seems like with 6s and a .665. I'm shooting hevi 6s in a rem turkey right now. It shoots hevis, win supreme, fed copperplated and thugs all in 6s very well. ^^^. Jelly head .660 shoots very very well in my cousins gun wich is the same thang. I just love hevi 31/2 21/4 6s through that .665. Kicks are all we run in duck guns. The high flyer xfull shoots win supreme 5s pretty dang good to(not sure of constriction) but I have no experience with a gobblin thunder.
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