At sea level the 168 vld drifts 59.32 in a 10 mph @800 MV of 2750
the 175 vld started at 2650 drifts 58.66 under the same conditions. I would say you won't see any real benefits till you get to the 185 or heavier bullets. The 175 LRBT drifts 55.96 in the same conditions. The 185 LRBT drifts 51.64 started at 2600 in the same conditions. All these were figured using Bergers ballistics program and Bryan Litz's BCs.