txhunter58 I think you hit the nail right on the head. It was the choice of powder.

I have found that 460 grain No Excuse get the best accuracy using Triple Se7en or Goex 3f. Pyrodex P is a close third most of the time. I think that with a projectile that heavy you need a fast burning powder to get that thing moving. Many of the sub powders are very slow actually in their burn rate when compared to black powder.

There was a show on the other night where they ignited smokeless, and then some black powder. What a difference in burn time. I was a little surprised when the smokeless sat there and "burned" while the black powder was little more then a flash and then smoke.

I really feel that's why Pinnacle 3f, APP, and other substitutes powders, not including in this Triple Se7en, shoot light sabots well and light conicals well like ball-ets, but when something heavy gets in there, it throws them all over the place. At least this has been my experience with it.

My new attitude is, if it is a conical it gets Goex, Swiss, Pyrodex Por Triple Se7en powder and nothing else. I finally got some Triple Se7en 3f powder yesterday. I am hoping to shoot that soon. It should be an interesitng powder. I have heard from some respected posters about the qualities of it and am looking forward to reproducing those results.