Don't fill the case up with powder!
My friend Tryg used to load his CZ-550 that way with AR2209, and bloody hell did it boot!
Nick Harvey's reloading manual is a perfect place to commence your search for loading data. Try his starting loads, you probably won't need to go far past that!

The ADI webpage is OK too, they list 89gr AR2209 for 2333fps as a starter. You can use slower powder like AR2213 or AR2217 but that will only increase the recoil.