Elite Ammunition S4M 28gr Aluminum core OTM gel tests:
This is some very impressive ammo...
The round's jacket fragments into many high speed pieces and totally separates from the core, creating a second large diameter wound tract.
The main body of the jacket is .57\" at it's widest point, and when it tumbles, the round rips a 1\"+ long hole in the gel (it actually tumbles a full 360 degrees, not just once, so you get 2 of those 1\" tears).
Here is the video:
http://www.youtube.com/watch?v=HjuVTFTn ... tion_15988 1&feature=iv
Nasty as hell.
In tests done by Brassfetchers Ballistic labs, in the summary they stated that the round matches the damage of a 230gr .45 ACP JHP.
Which is damned impressive.