Not to rain on your parade, but a 1:10" twist will not stabilize a 105 gr Berger VLD bullet. Bergers have a 9r ogive, making the bullets very long for their weight, so you need a tighter twist to properly stabilize them. I am currently building a 6mm-06 for a customer, and I used a 1:8" twist barrel to stabilize the 105-115 gr VLDs, as recommended by Berger.
http://www.bergerbullets.com/Quick%2...s%205-3-10.pdf
You might do well to try a few shorter bullets:
Hornady 100 gr Interbond
Sierra 100 gr SPBT
Speer 105 gr SP
Or go to the tried and true 95 gr Nosler Partition.