I haven't used Berger 168s at all, but I have used Berger 150 Full Bore, 155 Target, 155 Full Bore, 175 OTM and 175 Long Range in my .308s.
In my two .308s, the one that likes heavier bullets, the 150 Full Bore managed the 11 best powder bullet combination after 10 spots held by Sierra TMKs of 195, 175, 168 and 155, in that order with two different powders for each bullet.

The rifle that likes 150 , 155 and some 168 bullets best, the 155 Berger Target and 150 Full Bore hold the 15 and 16 slots out of 28, with the first 10 slots held by Sierra TMKs but in the order of lighter to heavier.
The 155 Target in 15th place averaged 0.179 larger groups than the best entry (168 TMK) in a rifle that likes lighter bullets.
The 155.5 FB and 175 OTM hold the 25th and 26 slots out of 28 and the Berger 175 Long Range holds the 28th slot.
Those averages were 0.250 or more larger than the best TMK.
The 150 Berger Target held 10 place out of 23 and averaged 0.148 larger groups than the best 195 TMK in the rifle that likes heavy bullets.
Based on the preferences of my two rifles, I have concentrated on loading for TMKs in the weights that each rifle prefers, so I haven't bothered with any more Berger bullets for my .308s.

For my 6.5 Creedmoors I found that the 5th best 140 Berger Hybrids preformed better than the 140 Long Range by 0.001 in average, and better than the 140 Match by 0.012. But the best 140 Berger hybrid average was 0.031 larger than the best 142 gr SMK and 0.010 larger than the 2nd best 147 Hornady ELD-M.