This is a flake powder. This is one of our favorite powders for 9MM. Do not load over max book for pressure as it can be unsafe. If there is such a thing as a "more safe" powder for loading 9 MM, this would win. With this powder, it takes a lot more time to compress enough powder into the case to make pressures potentially very unsafe. We loaded up way over book, and came nowhere near the higher pressures in other powder loads. Nothing is impossible, but we think you can't "double" charge this powder. We think this could be the best powder on the market for perhaps somebody just learning how to reload 9 MM, due to its case capacity limitations, which is inherently safer if you make a loading charge mistake.
This powder is similar to Power Pistol in that it makes fireballs out the front of the barrel.
For loading standard or +P Pressure, this would be a top choice, as it produces some of the highest velocities on the market. It is also decent accuracy accurate. It has no real downside other than its its below average versatility, since its on the slower end of the powder range. It was also accurate with lower charge loads made for steel plate shooting, or plinking.
If this powder had a weakness, it is that the standard deviation & Extreme spread of shots in a string with the same load are above average.
If you are just learning how to reload 9 MM, buy this powder first, you probably can't do better to start out with.
It is no wonder "other" powder manufacturers are trying to copy this powder. For casual, recreational reloading and shooting in general? We think it is hard to do better than this.