I made a build, on a Tikka T3 action and a Hardy SS 26 inch barrel with a Palma medium contour, put into a MDT chassis and it's working just great.
My load of choise is a Hornady 135 A-Tip, going 3050 fps and it 's making some VERY tight groups and has made the steel ringing out to 1900 yards.
I'we tried out a lot of different bullets and powder combo's and it was a bit frustrating at start, but i realized, that primer selection was more important, than powder burn rate.
Here in Europe, we does not have acces to most of the powders available in the US, but there are though, a wide selection of domestic products availably and as for primers, pretty much all brands are on the shelfs.
After some testing, i went for the Reload Swiss RS70 ( roughly a RL26 ) and CCI 250 but my ES was a bit high ( outside the tens ) and Federal and Remington did not do any better, but then i found some old RWS 5333 and then the ES suddenly dropped to 6 fps and the groups got tighter ( 0,3 MOA ) so i hurried to the dealer and bought what he had of the RWS's.
Another important issue, is cleaning! Keep your barrel VERY clean!
Apart from the usual daily cleaning after every session, my barrel get a very thoroughly treatment with Mpro7 carbon remover after every 120 shots and it keeps the carbon ring away.