I have found no real difference between the ttsx and tsx in terms of terminal perormance on game. My 7mm rm actually shoots the tsx better then the tipped version for some odd reason. I load for a 300wm that use 180 TSX's and recently switched to TTSX (180's) accuracy is on par with the orig. tsx. He's shoot moose, elk and deer with the tsx 180grs and has nothing but great things to say about the bullet.
Another bullet to consider is the Nosler Accubond, they have worked well for me on both thin and heavier skinned animals.
Finding accuracy with either the tsx or ab hasn't been issue for me in dozens of rifles.
FYIW I use Nosler Ballistic Tips for deer in my rem mag, awesome results on big bodied canadian deer.
Good luck i hope you love the winnie!!!!!