shot this pattern yesterday(3/29/13) with my tk2000 at
50 yards1. had 20 hits in head and neck
2. had over 70 hits within 15" pattern circle
Used 3' shot cup and ITX Turkey Trauma 13-mix of #4 and #6 shot from BPI
over 90 gr. of BlackMZ
had better patterns last year but used 3 1/2" cups with 2 oz. of #6 shot over 110 gr. of Black MZ but had to cut back due to car accident (my car got hit by drunk/doped up driver)
I wouldn't be afraid of using this gun with these loads at 55 yards.