Hydra-Shoks HANDS DOWN.
I've tested them 3 ways:
1- 4X4 board standing upright. Fired 5 shots w/ each round. With the SXTs the board was still intact, barely, but it was. With the Hydra Shok rounds it splintered and busted in half after the 3rd hit.
2- Pig hunting. Hit a 195lb hog in the heart with the 9mm, he died. While butchering him, the SXT had hit the heart but the Hydra Shoks OBLITERATED IT. Literally blew it apart inside the other hog.
3- Bull skulls. I shot one bull skull (with meats, brains, etc still in/on it. The SXT did lots of damage but had a relatively small entrance and damage channel. The HS had a much larger entry and deeper, wider damage path.
Pics to follow...