Wade2131, if I am following both of your posts, you have a 20" Encore that is apparently keyholing using BLC-2 powder and 52gr HPs. The standard twist for an Encore is 1:12" twist. I have had accuracy issues with short barrelled 223s, 52gr + weight bullets, 1:12" twist, and for the short length barrel, a powder that would be considered slow. As a suggestion, I would try a lighter bullet and a faster powder like H4198 or if you want to stay with a ball type powder try AA2015. If that doesn't solve the issue, have a gunsmith look at the crown. It doesn't take much to touch up a crown with a crowning ball- 15 minutes maybe.