Well, since I am such a Partition "slut", I have to step in and voice an opinion. Don't sell the Partition short! It does not quite have the BC of an Accubond, nor the pinache of a TTSX,[both very fine bullets, BTW] but it is boringly dependable and plenty accurate in 99% of all rifles. As a matter of fact, I have a couple of rifles that prefer the Partition over any other bullet. Your 7-08 will work great with either the 140 or 150 Partitions. I would try both and then work with the one that shot best. The 160 is also an option, but is better in a slighly longer case/action, since in the 7-08 on a short action, the 160 starts to encroach on powder space. I do not at present have a 7-08, but own it's ballistic twin, the 7x57 Mauser. It shoots any Partition well, with the 160 being the best, and, strangely, the 150 the worst. That being said, the 150 still averages 1¼moa.
Regards, Eagleye.