I have tried 270, 7 mag, 25-06, 30-06 and all shot very poorly overall. I tried one other caliber which escapes me right now. It shot about normal for factory ammo in that rifle. I mostly see it when someone buys a bunch and wants me to help them sight in their rifle. I would never recommend it based on what I have seen accuracy wise. I have never run a single round of it over a chronograph since it was never for my rifles.
