Been a while, but I shot everything from 147-150gr, to 168gr and 175gr out of mine. All fed fine, and it loved the 168gr SMKs over and appropriate load of 4064. I never shot it over 500 yards or so, but the 175 were getting there. I imagine after 750-800 yards the 175s would be better because the 168s would have gone transonic and less stable.
I never did get around to the 110s but that was my next thing. Somebody broke in my house and stole the gun, and when I got it back a year and a half later, it had rust in it. So I sold it. Hornady 110s were supposed to be a great bullet out of them.
Mine was a DSA custom build, sent to a well known member here and at FALFiles at the time, 2003. He accurized it. It was a an Austrian front half, wuth an X Stock on the rear, series II receiver. It was a fantastic shooter, with no stringing after the work was done, with a Badger match target barrel.
Good luck with your build.