Last season I was using the factory XX Turkey choke with the 3" 2oz Win Supreme #4's. It would put around 10-15 pellets in the turkey head target at 40 yards. It was a .670 choke. This year I bought the Undertaker, and will be patterning the same Win Supreme loads, along with Win Supreme #5's and the new Federal Mag Shok Flitecontrol #5's as well. I will shoot whatever patterns best. A lot of my turkey hunting this year will be longer distance than last season so I want to feel comfortable shooting 45 yards this year.