They pattern great out of non-ported choke for me. I'm shooting a Hasting .665 choke and getting 200 in a 10 in circle @ 40. Having good success with the Hevi 13 choke and 7's in the 20g. 170's in a 10. The flight control wad seems to be finicky with respect to choke but once you hit the right combo it's money. Good luck.