I just sent my TK2000 back to Knight. I couldn' t get it to shoot any where near the 85% shot density @ 40yds. I wouldn' t have shot it past 25yds on a Turkey.
I started with the load they had in the owners manual using their 3 1/2" wads 100grs. powder and #5 lead shot. I went up and down with the powder and with the amount of shot. I even tried without the 3 1/2" wad and used a couple of over the powder shot wads. Nothing seemed to help the patterns.
The good news is Knight said that they' d look at it and have it back to me before our Turkey Season here in Illinois.
I hope you have better luck with yours. Keep us posted!
Keep it in the 10X