I would say that 3000 fps it completely realistic possibly up to 3200fps , I have heard of guys with regular 6 groove 30" barrels getting this with Lapua cases and Vihtavuori N-560 powder.
I now a guy thats shooting a 280 Ai with this powder and swears buy it. I have used the N-165 with great results in alot of guns it would also be a good choice for this case