Hornady 9mm load question

[dave bennett]

Recently acquired from a friend a box of .355 XTP JHP 124 gr by Hornady. Since I really don't feel the need to add a new Hornady Manuel to my library (and I can't bring it up on line) I'm asking for a member to please look at the new Hornady page in 9mm for this loading info. The powders I have on hand are: Unique, W231, TiteGroup & Power Pistol and I wish to stay with them.

 

[Mike L.]

Dave, you can go to Alliant Powder's website and get data for that bullet weight for Unique and Power Pistol.

 

[Steve C]

Shown below is a link to an image for Hornady 124gr bullets found in the One Book/One Caliber compiled data manual. Personally I use data from Alliant that you can find on line for 124gr Speer Gold Dots using Unique and Power Pistol. Just work the load up.

Loads for TightGroup and W231 using Hornady bullets can be found on Hodgdon's website.

https://drive.google.com/file/d/1vAAi9UfEAwVHmpOpGXK0lyODS4cqAJs9/view?usp=sharing

 

[dave bennett]

Shown below is a link to an image for Hornady 124gr bullets found in the One Book/One Caliber compiled data manual. Personally I use data from Alliant that you can find on line for 124gr Speer Gold Dots using Unique and Power Pistol. Just work the load up.

Loads for TightGroup and W231 using Hornady bullets can be found on Hodgdon's website.

https://drive.google.com/file/d/1vAAi9UfEAwVHmpOpGXK0lyODS4cqAJs9/view?usp=sharing

Thanks, .... much appreciated, Dave

 

[dave bennett]

Dave, you can go to Alliant Powder's website and get data for that bullet weight for Unique and Power Pistol.

I'll check that out ....... thank you Dave

 

[edwardware]

. . .a box of .355 XTP JHP 124 gr by Hornady. . . I'm asking for a member to please look at the new Hornady page in 9mm for this loading info.

This is weird. Where did you get the idea you need bullet specific data? I ask because this question keeps coming up, and I can't figure out why.

You have a 124gr JHP. Plunk test for COAL, and start at the Start charge for a 124gr JHP, from any manual.

I get that it might be a stretch for a new reloader to interpolate into an unlisted bullet weight, but I don't understand the focus on brand specific data. Most of the manuals available from Powder Co's and aggregators (like Lee) don't specify a brand at all, just type/weight; that's all you need provided you start at Start.

You will suffer more variability in pressure from variability between barrel manufacturers than bullet brands within a single weight (124gr) and type (JHP). Among my 9mm plastic pistols, I have slightly over 0.150" variation in maximum seating to operate and plunk; that completely swamps any effect of jacket thickness, shank length, etc on pressure. The simple fact that you have a production barrel vs a lab-grade SAAMI pressure test barrel is probably about that significant.

The bullet brand (and Primer brand) matters less than the other variations that your aren't accounting for, which is why we start at Start. So Start there.

 

[lordpaxman]

I always try to find reloading data for the specific bullet I have first, and then if I can’t interpolate to the nearest best match.
I next try to find additional data from other sources to see, hopefully, there’s some consistency to the load data.

Loads for TightGroup and W231 using Hornady bullets can be found on Hodgdon's website.

You will have to use the 125gr 9mm data on Hodgdon’s website to find the HAP data. My understanding is the HAP is an XTP without the slits cut into the jacket. Good luck!

 

[Typetwelve]

From their current manual. 124g XTP COL 1.060". Charges (in min/max). As always, load at you own risk.

Unique: 4.0/5.0

W231: They don't list a charge

Power Pistol: 4.3/5.7

Titegroup: They don't list a charge.

I've loaded a bunch of the 115g HAP (XTP) and found that Acc No7 and Sport Pistol are the best performers with those HAP loads...especially the No7

 

[markr6754]

Latest Hornady data per your request

 

[Lennyjoe]

10th Edition.

 

[JJFitch]

From their current manual. 124g XTP COL 1.060". Charges (in min/max). As always, load at you own risk.

Unique: 4.0/5.0

W231: They don't list a charge

Power Pistol: 4.3/5.7

Titegroup: They don't list a charge.

I've loaded a bunch of the 115g HAP (XTP) and found that Acc No7 and Sport Pistol are the best performers with those HAP loads...especially the No7

Dave,

The above post confirms what is listed in the 9th edition of the Hornady reloading manual.

Are you trying to duplicate factory loads for this bullet?

That being said consider calling Hornady Tech guys they may be able to fill in the blanks!

3625 West Old Potash Hwy
Grand Island, NE 68803 USA
Phone: 1-800-338-3220
Phone: 1-308-382-1390
Fax: 1-308-382-5761

All the best,

P.S. For advanced reloading bullet weight and ballistic coefficient can be used, bullet profile to bullet profile to get load data! Use best practices to work up reloads!

 

[Skgreen]

Just wanted to say there is nothing wrong with asking for load data from the bullet Manufacturers reloading guide for a specific bullet, especially when one is unsure/just getting started.
In general, (Horseshoes and hand grenades) all X type or Y type handgun bullets are roughly ~the same~, but when you compare 'old' vs the newer rifle bullet profiles, even greater amounts of load variance can occur.
Lotsa folks here are glad to help out, and many of us are simply returning the same favors we sought out back when we weren't so sure ourselves.

 

[Dudedog]

Hodgdon Data for Hornady 124 HAP (very close to XTP)

125 GR HAP Hodgdon CFE Pistol .356" 1.069" 4.2 956 25,600 PSI 4.8 1096 33,400 PSI
125 GR HAP Hodgdon Longshot .356" 1.069" 3.9 901 24,700 PSI 4.4 998 32,600 PSI
125 GR HAP Hodgdon HS-6 .356" 1.069" 4.5 865 27,200 PSI 5.1 971 33,100 P
125 GR HAP Winchester AutoComp .356" 1.069" 3.6 842 25,000 PSI 4.1 954 31,600 PSI
125 GR HAP Hodgdon Universal .356" 1.069" 3 803 26,800 PSI 3.3 892 32,200 PSI
125 GR HAP Winchester 231 .356" 1.069" 2.8 753 25,300 PSI 3.3 876 33,600 PSI
125 GR HAP Winchester 244 .356" 1.069" 3.4 960 26,500 PSI 3.6 1060 32,600 PSI
125 GR HAP Hodgdon HP-38 .356" 1.069" 2.8 753 25,300 PSI 3.3 876 33,600 PSI
125 GR HAP IMR SR 7625 .356" 1.069" 3.3 804 25,600 PSI 3.8 914 32,000 PSI
125 GR HAP Hodgdon Titegroup .356" 1.069" 2.8 816 27,100 PSI 3.2 930 33,700 PSI
125 GR HAP IMR 700-X .356" 1.069" 2.9 843 27,000 PSI 3.4 938 33,500 PSI
125 GR HAP Winchester 572 .356" 1.069" 4 961 26,400 PSI 4.6 1074 32,800 PSI

So W231 start 2.8 MAX 3.3
Titegroup start 2.8 MAX 3.2
Hodgdons data for the HAP is quite a bit lower than for other 124s....

https://www.hodgdonreloading.com/data/pistol

 

[armoredman]

Been using 8 grains of AA#7 for that bullet for years, and 5.0 of Unique. Good solid performer.

 

[dave bennett]

10th Edition.

View attachment 938388

10th Edition.

View attachment 938388

 

[dave bennett]

You Guys Are Great ! Thank you for your help ! ! ! Dave B

 

[dave bennett]

10th Edition.

View attachment 938388

Many thanks for this. Dave B

 

[Charlie98]

Since I really don't feel the need to add a new Hornady Manuel to my library

Actually, I consider the Hornady manual one of the best, second only to my Speer manual. Among other things, it has a good amount of service rifle data, which I find helpful based on what I shoot.

This is weird. Where did you get the idea you need bullet specific data? I ask because this question keeps coming up, and I can't figure out why.

Because every bullet is different, even within the same caliber/cartridge. Things like nose or ogive profile, location of a crimp groove, bullet construction material, and it's intended velocity envelope, among other things. Take 5 manual entries for a 124grn 9mm bullet and compare them. Each will likely have different start and max charges, different OAL, different velocity ranges... all for different reasons. Yes, you can take Speer data and a Hornady bullet, for example, and load that guy up... but you better start low and work up.

 

[edwardware]

Because every bullet is different, even within the same caliber/cartridge. Things like nose or ogive profile, location of a crimp groove, bullet construction material, and it's intended velocity envelope, among other things.

You betcha they are!

And after you've worked up loads for a dozen bullets , a couple powders, and 3-4 firearms, in any given caliber, you'll realize that those variation are as much an effect of the barrel and chamber as the bullet shape within a weight and construction type.

That's why we start low.