I would try slowing it down to 1600-1700 fps if you don't have gas checked bullets. having the base of the bullet degrade in the bore from gas cutting will certainly cause keyholing if not just poor accuracy.

Did you slug the bore and compare it to the bullet diameter? I would bet that the Meister bullets are undersized and you are getting alot of blowby.
I've used meister bullets for 9mm before and they were sized to exactly .355" when I needed a bullet of at least .356"- bullets went all over the place[:@]


When seating the bullets, seat them so that they seat firmly into the rifling, if possible, don't let the base of the bullet extend below the case neck- which shouldn't be too much of a problem if you are shooting a 30-06, but might be a problem with a .308.