Barnes bullet question #2 (270 Win)

I have finally arrived at 52 grains of H4350 with a 130 gr TSX for my 270 Winchester. Can put 5 shots right at 1" from 100 yds. So my question is whether anyone has experience with better accuracy with the TTSX's over the TSX's?
FWIW I have 25 .338cal 200gr XFB's that I will ship for free to any forum member who would like to try them and not try and make some $$ off of a freebie. Just respond to the thread and the first person can have them. Thanks.

Todd