Anything between 41.5-43.5 will do the trick, but like JB said, depends on your seating. Also depends on your brass and case capacity. I think LC has less capacity than Lapua, but don't quote me on that.
Personally, I shoot the following 175 SMK load out of a Savage 10 FCP-SR (which has a shorter throat than a 700)
42.5gr of 4064
fired lapua brass, collet neck sized. Same load works with Hornady Match brass as well.
41.5 - 42.5 does the trick in my Savage 10 FCP-SR. 2.220 oal using a hornady comparator. 41.5 gives me 2600 FPS, 42.5 gives me 2650 with no pressure signs. This is 70 degrees. For comparison, 41.5 at 0 degrees gives me 2560fps.
Armydog - what are you getting for velocity with this load?
I'm embarrassed to say if I checked it I did not record it. I have been messing around with a number of loads and bullet weights but I do not see the data on that one. As soon as I get more 4064 and 175SMK's I will post it. Sorry, all I have now is 168SMKs and Varget to shoot.