Hi Dave, was more thinking of the non-lead options. Something I have been thinking about about and from my limited reading / discussing it with people it seems that the Barnes favour being driven a bit faster so going with a lighter weight not a bad thing. Also with the monometal's a 150gr is longer than the equivalent weight lead bullet so will be closer to the lands in our typically "long throated" 7x64s
So, my thinking being
Barnes TTSX BT
140gr - BC 0.412 and OAL 1.361"
150gr - BC 0.450 and OAL 1.433"
Nosler Long Range Accubond
150gr - BC 0.546 and OAL 1.380"
Nosler E-Tip (Their non-lead option)
140gr - BC 0.489 and OAL 1.350"
150gr - BC 0.498 and OAL 1.425"
Now, I would take Nosler's BC number with a pinch of salt because they seem to have a reputation for being a touch "optimistic" so I would be tempted to try the Barnes first if you wanted non-lead as longer bullet for given weight and likely to be closer to the lands and probably not much difference in real world BC.
Now, please don't mistake this for anything bar my own summation after reading around the subject. I have no empiracal data on this.
Also, some say the LR Accubond has not performed so well up close but again no first hand experience...
Anyway, happy to hear your thoughts
Scrummy