That isn't bad performance for a 55 gr non-bonded SP. It also penetrates deeper than the typical non-bonded 55 gr SP. Though it most likely won't prove satisfactory as a barrier blind load, if it consistently reaches the 12" mark, it should at least prove to be as useful as certain heavier non-bonded SP loads that cost considerably more.
ETA: I just saw another test of this particular load. It achieved 13" of penetration fired from an 18.5" barrel Mini-14. This is really, really interesting. With a non-bonded bullet, you would expect increased fragmentation and correspondingly less penetration as the velocity increases. But that doesn't appear to apply to this particular load. I'm really going to have to give this ammo a much closer look. I am quite impressed by the wound cavity it produces and its ability to meet the minimum FBI 12" penetration criteria where so many other 55 gr SP loads fall short. And coming in around $10 for a box of 20, it provides much of the performance of ammunition that costs twice as much. Granted, it probably won't perform very well through intermediate barriers. But one can still keep a mag or two at the ready with something like the Gold Dot, Fusion, TSX, etc for barrier duty and use this for other applications. Based on what I have seen thus far, this would appear to be a good load for entry work or home defense where over-penetration is a concern and barrier blind performance a bit less of a necessity.