Just from the picture it looks like a PMC Starfire bullet configuration, just have never seen this type of GD (Gold Dot) round, and was wondering if any of our readers had experience with it. I have 124 +P Speer GD in my 9mm Glocks already.
If you follow Ballistic Radio he tested a bunch of this a couple weeks ago. They're 147 grain instead of 124, and he had iffy results. Speer had him send some back to them for testing thinking he got a bad batch. I'll stick to Federal HST
If it works in your gun and goes where you aim it, the differences in the modern SD ammo from the major players is very little. HST, Critical Duty/Defense, Gold Dot etc. I'd trust my life with.