Another alternative is the Cauterucio 189s (used to be 176s but he puts more filler in them now). I spoke to Bob when I bought mine a few months ago and he said the achieved BCs were considerably above the Berger 180s (.725 at 2,700 fps and above .800 for speeds above 3,100 fps).
According to my calipers, the 189s are considerably longer than the 180 Bergers in length (1.560" vs 1.533"), bearing surface (0.643" vs 0.622") and base to ogive (.845 vs .822) as compared to my most recent lot of Berger 180s). My calipers show the 189s to be MUCH more consistent in the above dimensions compared to the Berger's which varied up to 0.006 in Base to Ogive length in my most recent lot of 1,000 bullets.
Here is a picture comparing the bullets side-by-side, together with the Sierra 175 and the JLK 180s (midway down the thread):
7mm Cartridge Guide