A finer extruded stick powder. A lot can fit into a case. Since this is a slower burning powder, you need a lot of powder to get higher velocity and it fills the case, causing compressed loads. This powder is for loading higher velocity ammo. It can do top tier velocity in most grain bullets, with the exception of perhaps lighter bullets because you run out of case capacity. For this reason, its not maximum versatile for 9 MM. Also, many +p or +p+ loads are compressed and will not accept a short overall length. If you have a barrel that accepts longer overall length, this powder is better overall.
We did not find this powder to be anything except below average accuracy with many loads. This powder is more picky on what load it shoots near 1 hole with. However, this is just nitpicking, as even a 1" group at 5 yards is acceptable accuracy in a pistol.
This powder runs a hotter than most. But this is not a big deal. At least this powder is not that dirty and doesn't blacken everything.
Overall, this powder doesn't make our favorite list for several reasons. The main reason is, you can get many powders that perform similary to this, but are more versatile, don't compress the powder as much, are less expensive, and possibly more accurate. Just speaking about 9MM only, this powder does not make a whole lot of sense. N340 can almost match its velocity, reasonably close. Too many loads with this are compressed, limiting its potential we think. Its perhaps slightly too bulky and slightly too slow burning to be suited perfectly for 9MM.
If you decide to use this powder, we would suggest using brass that has the largest case capacity available on the market. So far, we see that Hornady brass has ~13.80 grains case capacity, generally. Starline Nickel is around ~13.50 generally, WIN is 13.25 generally, and Xtreme brass is the least we found at around ~12.75. You want higher, and if brass was ~14 grains capacity, you would want that. You need all you can get with this powder...