Picking the right barnes bullet for a .308
I'm hoping to bring my .308 to south africa next year for plains game. I'm thinking I should use tougher bullets for this trip than I usually use (hrndy 165 btsp), and I've been looking at Barnes bullets for their reputation of being tough and penetrating well. I was dead set on the 168 gr ttsx until I found that it had a minimum expansion velocity of 2000 fps, compared to 1800 fps of the regular tsx.
I don't want to go for a lighter bullet (since the really large antelopes require penetration), but my .308 will drop below 2000 fps at something like 250 yards. Barnes recommends a margin of 200 fps for good expansion, and a 168 grainer from a 308 drops below 2200 fps pretty fast.
Would you recommend me to go with the tsx or do you have reason to believe that the ttsx will perform well enough even if striking the target at below 2000 fps?
Does any of you magnum shooters have any experience with the long range performance of the 168 ttsx?
Any info appreciated.