Just a fyi,
I am also using 139's in my 6.5 CM but not pushing past 2750. (need to make the barrel last) I started sing 142 SMK but they vary too much in weight unlike the Lapua's that are EXACTLY 139. I used up most of the SMK and almost a box of the Scenars so I thought I'd look at Hornady's 140 HPBT. They just a tad shy of the 139 and 142 BC's but every single one is weighing in at 140 and I am getting great results over Superformance or 8208. Of course, with the 06 case, one needs a bit slower burn rate.
You'll move it, there's someone for every gun..
Or should I say, a gun for someone..