Kick's Gobblin' Thunder .655 or .660 for 870?

[d.winsor]

I have 2 870's one supermag 3.5" one 3" SPST.  I shoot Briley .665 straight rifle choke on both 100% awesome.  I just got a SX3 NWTF and bought same briley choke for it.  I haven't patterned it yet but will use supreme 3.5" and 3" Winchester Supreme (black shells).  I also have a box of Winchester long beard #5 to try.  I have used Winchester Supreme #5's since 1994 they are great with these chokes.  .660 to .670 for lead #5 shot