patterns in my groups, what does it mean?

[coonhunter70]

I shoot a 28" Shilen 25-06 and I had so much trouble with the same thing sometimes it would shoot pretty good but most of the time it would put two on top of each other and throw one out. I was pulling my hair out over this, I was working with 90gr blitzkings, 100 matchkings and 100 B-tips and then I got hold of some Berger 115's and loaded some up for a ladder test with H-4831 and WoW now it almost always prints nice clover leaf groups sometimes it dang near one holes.

Goose, I guess what I meant to say was that your barrel may like the heavier bullets as mine apparently does.