I had problems with the 115gr Berger's in my 8twist 6mm-06 6groove lilja barrel. I came to the conclusion I was having jacket core separation issues but I have no way to prove it. It would pressure up quickly and then accuracy would go to hell. I gave up on the 115's and switched to the 105 vlds at 3300fps with RL33. I have some of the new sierra 110's that I'm going to play with this winter if I get a break. The sierras have a thicker jacket then the bergers and will handle the speeds your talking about better then the bergers thin jackets.