Re: Which 6mm???
If you want a varmint rig 6mm capable of 1100yds with good barrel life, the 6br or improved is the way to go. the 105amax you are talking about is part of the problem.the 95 or 105gr VLD berger or 107gr SMK sierra is a far better choice for this application because of the B.C.(they also shoot better in any 6mm I have owned).
It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.