Hodgdon HP38
This is a fast burner powder for 9MM, meant to compete with we would guess, Alliant Bullseye.
HP38 Left
Winchester 244 Mid
Accurate #2 right
Not bad at all?  Way cleaner than Titegroup? Not sooty
Hodgdon HP38
NOT Flake!  This is a severely flattened sperical powder!  You can tell because the spheres were not same size and when they went through roller to flatten, some when flatter than others, causing different shapes.  Flake powders are pretty round, and uniform.   A lot can fit into a case.  More than you will ever need.  This makes this powder more dangerous if you make a reloading error.
Cleaner than Titegroup and similar in performance.  Not as economical though, since you need slightly more powder in the case, and the price of HP38 is slightly more.    This is a great faster burning powder, fantastic.  We look forward to the "fast burning powder" showdown to see if this thing can win!  It has to be up there..its just a SOLID performer!  you cannot go wrong with this powder.  Its everything you could want in a faster burning 9 MM Pistol powder...really. 
Lets take a look at some of the brass...

3.2 Grains
147 Grain Hornady XTP
1.1 OAL
Xtreme Case 12.72 case capacity
Blue colored case is a lower pressure, ~20k PSI load using same primer for reference.
5.0 Grains
124 Grain Precision Delta HP
1.095 OAL
Xtreme Case 12.72 case capacity
Blue colored case is a lower pressure, ~20k PSI load using same primer for reference.
5.2 Grains
115 Grain Hornady HAP
1.1 OAL
Xtreme Case 12.72 case capacity
Blue colored case is a lower pressure, ~20k PSI load using same primer for reference.
6.3 Grains
90 Grain Sig Sauer V-Crown
1.070 OAL
Xtreme Case 12.72 case capacity
Blue colored case is a lower pressure, ~20k PSI load using same primer for reference.
Hodgdon HP38
Maybe this one is the winner of the "fast" bruning powders for 9MM?  Go check fast burning powder comparo!.
HP38
Here are some of the loads we tried with this powder..
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