Underwood 180gr Hornady XTP(11/2014) Pull-Down

[Intercooler]

Do they give a loading/pressure chart for that powder?

[The_Shadow]

Here is a loading of the 40S&W using the LOVEX D037-2 compared to AA#9

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
Lovex D037.2 load density%, 102.5 / 11.2 grains 0.72 1130 fps 64.0 30,625 psi 5363 0.436 ! Near Maximum !
Accurate No.9 load density%, 102.5 / 11.2 grains 0.72 1130 fps 64.0 30,625 psi 5363 0.436 ! Near Maximum !

here is LOVEX Data for the 40S&W


Accurate Arms data for the 40S&W
HDY 180 XTP  1.135"
No.2 5.0 gr 851 fps No.2 5.6 gr 967 fps 35,000 psi
No.5 5.9 gr 849 fps No.5 6.6 gr 965 fps 32,500 psi
No.7 7.7 gr 861 fps No.7 8.5 gr 978 fps 34,600 psi Major
No.9 9.9 gr 897 fps No.9 11.0 gr 1019 fps 35,000 psi Major

[happie2shoot]

First post on this forum, love what you all have done.

I am not saying this is the powder but does anybody remember that
article about AA#8, I think it was titled, It must be something I eight.

Don't think they made it available to the public.

[The_Shadow]

Hello and Welcome to the forum Happy2shoot.  I remember several things about people talking about AA#8 but I don't think it ever existed, I could be wrong!  (Did AA skip #8 or discontinued years ago? I have no knowledge )

What I do remember was a guy that was mixing/blending AA#7 & AA#9 to get somewhere in between as an AA#8 if you will.  He played around with small batches posted a few results but haven't heard more than that.  I don't like that process no matter how precise the mix...

This particular powder that was found in this loading had me searching my hard drive for a match, while I can't be 100% sure I think the LOVEX D037.2 is about as close as it gets till I find otherwise.

I do welcome others to provide data for review to help in the process. 

[The_Shadow]

Well today I managed to test the D037-01

For the first test I have put together the following loadings;

#1 (0.5 grain over highest A#7 book loading)
Rainer 180gr HEX Plated HP
Star Line (new) COAL is 1.2550"
LOVEX D037-01 12.0 grains
From the Glock 20SF Factory barrel Wolff 22lb spring and recoil rod \
Velocity 1128 FPS
Case expansion 0.4320"

#2 (1.0 grain over highest A#7 book loading)
Rainer 180gr HEX Plated HP
Star Line (new) COAL is 1.2550"
LOVEX D037-01 12.5 grains
From the Glock 20SF Factory barrel Wolff 22lb spring and recoil rod
Velocity 1238 FPS
Case expansion 0.4330"

#3 (1.5 grain over highest A#7 book loading)
Rainer 180gr HEX Plated HP
Star Line (new) COAL is 1.2550"
LOVEX D037-01 13.0 grains
From the Glock 20SF Factory barrel Wolff 22lb spring and recoil rod
Velocity 1285 FPS
Case expansion 0.4335"

NO SMILES!  Primers look pretty good. Based on this test I would say the Underwood load is this powder...