I've had great luck with Barnes bullets and accuracy. My .338 fed is a finicky rifle and it does not like all bullets. Both the 160 gr and 185 gr TTSX shoot very well set .05 off. The 120 gr TTSX shoots well in my 7mm-08. Not sure what the jump is but it's significant. Finally I just recently tried the 300 gr TSX in my 450 marlin. Not surprised with the results. All in all I've found Barnes bullets to shoot more accurate than most. Possibly try setting them deeper?