Jeff Bartlett at
www.gibrass.com
He carries pulled down Mil-spec bullets and surplus powder. Tell him what you are wanting to duplicate and he'll tell you what to use.
Prices are really good too.
However, if you're looking for optimum accuracy, I suggest using Sierra bullets.
230gr RN for the .45acp, and use Win#231 powder. 5.2 to 5.7gr depending on what you're looking for. However, Jeff B. carries mil-surp AA#2 which will also do quite well, for much less $$$. The mil-surp bullets (IMI, ect) vary greatly in quality from lot to lot, so, the Sierra is much more predictable. Practice with the mil-surp, compete with the Sierra's.
For the '06, use the Sierra (or Nosler) 168gr BTHP match bullet.
My older brother shoots NRA high-power with an M-1:
He uses the Sierra 168grBTHP over 46.0gr of H4895, or 48.0gr of Imr4064. Nearly duplicates the 173gr mil-spec Match, only more accurate. He uses weight/headstamp matched mil-spec brass that's been neck-turned, and primer pockets/flash-holes reamed.
I'm suprised no one else has responded to you.