The ammo sold by Oly is expensive, but they now sell the dies as well so reloading should be a breeze, I just ordered a complete rifle, the stalker camo version.
I would think this could be a 1000 yard rifle loaded with 155 lapua scenar, smk, or ncc, any of those high bc bullets in 30 cal shot at around 3000 fps would do. This would not be ideal, but it would match a long barreled 308. This is only speculation, but would be fun as [beeep] to try.