aa#7 and 124gr hp/xtp


April 4, 2010, 04:06 PM
I can not find any info in my manuals for a 124 grn hp/xtp for my 9mm load. I was told that coal is 1.060" and max powder is 7.9 grn of AA#7 can anyone confirm this and if so could you tell me the starting load as well. I don't have the Hornady manual so I can not confirm this at this time.

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April 4, 2010, 04:26 PM
blindhog1964, here's the link to Accurate's load data pdf for download:


April 4, 2010, 04:30 PM
Hornady Manuals 5th and 7th Editions:
9MM Luger 9x19
Hornady case-WSP primer-4" barrel
124 gr XTP-HP --COL as tested 1.060"
AA#7 powder start 6.2-900fps--6.6-950--6.9-1000--7.2-1050--7.6-1100
maximum 7.9-1150fps
Same data for the 124 fmj-rn encap but an overall length of 1.150" for the 124fmj.

April 4, 2010, 04:31 PM
Thanks bds but it dosen't list the 124gr hp/xtp bullet just the fmj 124 gr and 147 gr xtp .

April 4, 2010, 04:33 PM
thanks rg just what I needed thanks again

April 4, 2010, 04:33 PM
I have not loaded any XTP-HPs in 9mm but, I load 124g FMJs with 8.5 of AA#7 OAL 1.135.My Speer #14 manual shows for the GDHP 8.1-9.0 of #7 with OAL 1.120. I have used the GDHP info for XTP-HPs in other calibers and they seemed to work well.

BTW welcome to the forum.

April 4, 2010, 04:45 PM
Info from Midways 9MM LoadMap series;
Note that overall length as tested was 1.135" for the 124 XTP-HP and decreasing overall length increases pressure.
AA#7--Hornady 124 XTP HP--oal as tested 1.135"
Rem case--Win WSP primer--4" barrel
Start 6.8-991 fps--7.0-1015-25500psi--7.2-1039-26600psi--7.4-1063-27600psi--7.6-1087-28600psi--7.7-1099fps-29200psi--7.8-1111fps-29700psi--7.9-1123fps-30200psi

April 4, 2010, 10:21 PM
Thanks for the replies guys but I have one more question how about the same bullet but useing 700x powder any infor for this?

April 4, 2010, 11:07 PM
For very light plinking/target loads 700X is great.
But it burns too fast for heavy loads.

April 4, 2010, 11:12 PM
That's what i am looking for griz ,is there any published data for a starting load useing 700x and 124g hp/xtp ?

April 4, 2010, 11:28 PM
I don't have the newest Hornady manual, but none of my existing manuals list 700X with 124 gr JHP bullets.

I guess we'll have to wait for someone with the latest manual, or other info for that data. Sorry! :(

April 5, 2010, 12:06 AM
Speer lists 4.3 grains as max under their 124gr bullet at an OAL of 1.120"

April 5, 2010, 01:00 AM
Only loads listed in Hornady Manuals is for the 90 gr. XTP. I wouldn't recommend 700X powder for the heavier bullets.
Midways LoadMap 9MM Series
Hornady 124 XTP-HP ( again, they tested with an overall length of 1.135")
shorter overall lengths increase pressure
Remington case--Win SP primer--universal receiver 4" barrel
IMR 700X powder start 3.2 grains-892fps-22800psi---3.4-936-25500psi
3.5-958-26800psi---3.6-981-28200psi---3.7-1003-29500psi---3.8-1025-30900psi. Start low and work up. Midways LoadMap showed loads up to a very Maximum of 4.3 at 35000psi but Don't go there especially if you shorten overall length. Be Careful!!! You see how pressure increases fast with this powder plus a shorter overall length would increase pressure a lot too.
Back in the late 1990's Midway published a series of LoadMap data manuals in 9MM, 45ACP, 357 Mag, and 44 Magnum. In the 9MM and 45 ACP manuals they tested for instance 10 different 124 grain bullets with 10 different powders. In 45 ACP they tested 14 different bullets with 10 powders. The only complaint is in 9MM and 45 ACP the overall lengths that they used are longer than bullet company recommended lengths, sometimes maximum length for the cartridge. In .357 and 44 Magnum lengths tested were standard seating lengths. They used different cases and primers in the different LoadMaps but the same case and primer for each caliber. For instance the 45ACP LoadMap used Rem cases and RP 2 1/2 primers in the whole manual. In my loads using Midway LoadMap data the loads in my pistols come very close to the results of Midways tests and I use the LoadMaps to compare data from other load manuals etc.

April 5, 2010, 01:28 AM
This may help (extensive reloading reference - free download) - http://www.thehighroad.org/showthread.php?t=515725

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