I have had great results with Barnes TSX and TTSX in .308 WIN and .338 WM in two Browning rifles. I did “fire lap” with a few 400 and finer grit bullets when new and seldom see green on the patches. I just today cleaned these two after two years of hunting and sighting in along with a 15 round ladder test on the 338, so not a huge amount of rounds between cleaning. Both are 1 moa in my hands. My 338 TSX bullets were purchased around 2004-2007.