Yes, I have used the factory 150 LR and the rifle shot it well. I gave him some ammo and I thought he was going to use it on a build.
Have him show you the tear drop fluting. He did that on my .280 AI, the bolt too. I had no idea just what he was going to do. It looks real good. Can't remember if he has that one on his site any longer. He does have the bull I killed with it on the site though. Love that rifle.