the 165 is intended to give room for enough powder in the WSM, because the all-copper bullets take up more space than lead-core bullets. Both bullets are annealed to the same softness for expansion at the same velocities.
If this was true, can you pull out some of your engineering wisdom from your arse and tell me exactly how much powder space you'ld gain by shaving off 3 freekin' grains?
On the .308 thread in the Gunwriters forum, you tell us how the 168 TSX isn't designed for velocities above 2800fps, then here you say the 165 was designed differently for the WSM, yet it keeps the expansion qualities of the 168?
That doesn't compute Lee!
