ORIGINAL: jlbeebe
I have a Knight disc master hunter. I shoot 100 grains loose 777 and a 300 grain sst bullet. Last weekend I shot a 3 shot group that measured .850". Keep trying and if you don't have any luck call modern muzzleloading or e-mail them at thier website. They will give you the information to send it in. They will shoot it and if they cannot get it to shoot they will replace your barrel. Costumer service is one of the benifits to owning a knight.
.850, now your talking accuracy. That is great shooting and the 300g SST is a great bullet. What primer and sabot are you using, the yellow easy glide or the black sabot? The black shot best for me.
Chap Gleason