Problem solved

I changed ammo and everything is fine. Switched to a hornady boat tail spire point 180grn weatherby ammo and solved all my probs. Its drving tacks now. 100-400yds its pretty much hitting all the same. 500 yds I was hitting about 6" low. So Im ready to leave wednesday gonna be nice and cool in colorado. Oh yeah when I was finishing up shooting at 500yds I chambered one of the 180grn nosler partitions and shot it. It was in the dirt at about 100yds before the target. Ill never buy another nosler bullet.