My experience has been with 300 WM 180 partitions and 165 TSX and TTSX for elk, all under 150 yds. Broadside, both bullets exit, internals are soup, exit holes, a slight nod to Partition. Quartering towards, the Partition ends up in the hide in the off side, the TTSX exits. All kills within a few steps. Partition will drop some weight, it’s made to expand quick and retain 60-70% of the weight after mushroom. TSX/TTSX looses almost no weight and I think (but can’t prove it) it expands a little bit slower and that why it all most always exits (and almost 100% weight retention). When I use them, I alway step down one weight from a lead core bullet. For instances, in my 300 I would use 180 lead core, for TTSX I use 165, in 7mm-08 for deer I would use 140 lead core, I use 120 TTSX. Put the bullet where it’s suppose to go and you will have no problem with either.
