I have a TK2000 its a great muzzleloader shotgun. The only advice I can give you is KEEP IT CLEAN. I have used 100 Gr Pyrodex with a full wad of #4and #6 shot mix. it worked very well for me. I sent it back to Knight for a recamo job, the camo finish blistered. Knight had it back to me in about 2 weeks it looks great can't wait to get it out in the turkey woods this spring. I got a nice Tom ( 20 Lbs, 9" beard and about 3/4" spars) last year at about 45 yards with the load I mentioned.