We've shot a lot of deer using TTSX, TSX and lately the LRX with excellent results at all ranges. This year we went elk hunting for the first time since 1992 and ended up recovering a couple of 168gr TTSX bullets. After seeing the results first hand and not reading or seeing pictures of the results of water or ballistic gel test. Honestly, I don't know what to expect from Barnes TTSX anymore. We're going to keep shooting TTSX, LRX bullets and killing stuff with them like we always have....but damn.
Using the Burger bullet calculator site, it says a 168gr bullet started at 3250 fps is supposed to be moving along at 2238 fps at 600yds. These bullets were recovered from elk shot between 610 and 630yds with a starting MV of 3250+ fps.