Shooters World Major Pistol, Lovex D037.1
This is a very slow burning powder for use in 9MM and is on the, perhaps, farthest end of the spectrum for use in this caliber.  Some say this is very similar to Accurate #7, and it is pretty similar.  In our experience, the lot of D037.1 we tested requires more powder to achieve the same velocity as Accurate #7.    We believe "Major Pistol, or D037.1" is the cleanest 9MM powder you can buy.  Look at the cases below.  If it isn't the cleanest, its top tier for sure.  Astoundingly clean. 
11.5 Grains and the case will accept more
Loaded the Lehigh 65 grain XD to 1.1 no problem
Major Pistol D037.1 Left
Ultimate Pistol D036-07 mid
AA#7 Right
All three powders are exceptionally clean burning across avriety of pressures.  Major Pistol seems to be slightly cleaner though across the range
Major Pistol D037.1 LeftUltimate Pistol D036-07 midAA#7 Right
Another angle.  It cannot be understated how clean burning these are compared to vast majority of 9MM Powders you can buy.
Shooters World D037.1
A fine spherical powder.  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.
What do you think this powder is for?  If you read the name "MAJOR PISTOL" you have your answer.  The marketing behind this is for people to buy it in race guns that do 165+ power factor, or what is called 9MM Major loads.  That is a very niche audience in the world of 9MM shooters.  And that segment is very competitive with many powders being used.  It can compete with them, so it belongs there.  See our other article area on 9MM Major for more information. 
In our opinion, the company could do a better job marketing this product because without a shadow of a doubt, this is a top tier powder in 9MM, and versatile.  Its the cleanest burning powder we tested, we think.  Its this powder and then some "near" it, but most are not even close.  For the price of this powder, the accuracy, how clean it burns, its versatility, availability and exceptionally easy metering?  This powder is near the top to compete with the best 9MM Powder you can buy with money.
If this powder is not known by you, get to know it, its very good.
Lets take a look at some of the brass...

8.2 Grains
124 Grain Precision Delta HP1.095 OALWIN Case 13.25 grn case cap1220 FPS 4.5" Barrel
6.5 Grains
147 Grain Hornady XTP
1.1 OAL
Xtreme Case 12.72 grn case cap
Fed Gold Medal Primer
8.5 Grains
115 Grain Hornady HAP
1.1 OAL
Xtreme Case 12.72 grn case cap
Fed Gold Medal Primer
8.1 Grains
124 Grain Precision Delta HP
1.095 OAL
Xtreme Case 12.72 grn case cap
Fed Gold Medal Primer
9.5 Grains
90 Grain Sig Sauer V-Crown
1.070 OAL
Xtreme Case 12.72 grn case cap
Fed Gold Medal Primer
Shooters World D037.1
Above average accuracy.  High performance, good velocities.  There is no load data for 90 grain bullets, and looking at the primers, 9.5 grains is nowhere near what we could have used.  We have no doubt this powder can easily do 1550 FPS using a 90 grain bullet without blowing primers.
Shooters World D037.1
Here are some of the loads we tried with this powder..
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