I agree on the notion that they are essentially a Ballistic Tip copy, that is afterall what Hornady copied when they introed the SSTs several years ago. I don't like quickly expanding bullets that penetrate shallow. I like a full hole in/hole out for maximum blood loss. I never had an SST (139 SST moly Light Mags in a 280 of mine) exit. Lastyear I used some 154 Interbonds in a 7mag of mine and they ALWAYS exited and did so with fairly violent actions. The nose on the IBs must be rapidly expanding because EVERY single doe I busted with it had LARGE exit holes in them. Accuracy wise, either the SSTs or the IBs are first rate.

I don't have any experience with the SST Interlock but would think they would be right in the middle of the other two,
RA