Most people are finding that the Berger VLD shoots better the closer it sits to the lands.. this can cause pressure problems though, so if the bolt is sticky or you see primers backing out then drop your charge.
Best advice I can give is to buy an OAL gauge from Hornady.. Measure the OAL of the bore, seat the first 3 rounds at -0.02 from the lands, the next 3 at -0.03, followed by another at -0.04.