BuckoDuck, I have owned a TK2000 for a couple years now. The load I have come up with is: 100 gr Triple 7 fffg, #5 Knight shot, and use the knight wads. That combo shoot's a great pattern!! I have heard that you can use regular shot wads, but you need to follow their guidelines. Like wads for lead, or Hevi-shot. The Knight wads are bi-metal. Meaning you can shoot any type shot. Hope this helped!! Let me know how you make out......