Hornady HAP 125 gr 9 MM

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HOWARD J

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Is 4 gr of W231 a good load for Hornady HAP 125gr 9MM bullet
????????????
PLease advise
Thanks
HJ
Used in Browning HP
 
I just found this load on Hodgdon data site
2.8gr to 3.3 gr of 231 giving pressure about 33000 #'s
lead bullet uses a lot more powder ????????????
 
That is indeed weird. 124 grain berrys plated they list 3.9 to 4.4 grains... but with the 125 grain HAP it's 3.3 max??

The HAP is just the HXP without cannelure and expansion lines/whatever, right? I wonder if they have to be seated extra deep or something?
 
That sure sounds light.

125 GR. HDY HAP Winchester 231 .355" 1.069" 2.8 753 25,300 PSI 3.3 876 33,600 PSI

Interesting.
 
I will load some of these using Hodgdon data & see how they shoot.
Hodgdon told me that they never make a mistake & he don't care what other companies say we are always correct---WOW QUITE A STATEMENT
 
A thousandth isn't much, but for a jacketed bullet that might be the difference. I assume they sized it at .356 for 38 super, but that's just a guess. I don't own / reload for one.
 
I called the Gun Shop where I purchased bullets--one of the fellows shot in competition
He uses these 125 gr HAP 9 MM bullets with 6 gr of Power pistol.
He said use 5 gr PP for comfortable shooting
This I will try.
 
I'd take "some guy's" data with a grain of salt. He might be shooting 9 Major. You never know.

I don't have hornady's book in front of me but I'd be interesting to see what their XTP recommendations look like.

Have you mic'ed a couple of the bullets?
 
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Weird. I wonder if it's a typo and the last number should be 4.3 instead of 3.3.

Makes no sense but I don't have the chamber pressure testing device they used. :D
 
I'd take "some guy's" data with a grain of salt. He might be shooting 9 Major. You never know.

I don't have hornady's book in front of me but I'd be interesting to see what their HXP recommendations look like.

Have you mic'ed a couple of the bullets?

Are you referring to the XTP? I know they have the XTP-eXtreme Terminal Performance, HAP-Hornady Action Pistol, FMJ, and FTX-Flex Tip eXpanding. Is the HXP a bullet I'm not aware of?
 
We will never know--as they told me that they never make mistakes.
So give it up
BTY: I just purchased 300 more of these as it appears they don't sell well in this area--I guess not much data keeps people away.
They have some on Midway
 
I was always told they were an XTP with no HP. Don't know. Interesting data Hodgdon has. I would probably treat them like any other jacketed bullet of that weight unless signs told me to stop.
 
When i researched this bullet for 9mm i did find data for win 231.
Hornady treats the HAP bullet the same as the XTP for reloading purposes.
The only difference between the two is the lack of serations in the hollowpoint on the HAP.
If using win 231 start at 4.0 and max out at 4.5 grains
The OAL is 1.060 and the finished mouth crimp is .370
I hope this helps. If this is for target only, use the load that groups the best in your gun. This is usually near the area of 4.0 to 4.3 grains of win 231.
I also use the 185 grain HAP in my 45ACP and the accuracy is amazing.
 
From Hornady website:
Modeled after the legendary XTP bullet design, HAP (Hornady Action Pistol) bullets are further refined into the perfect competition projectile. While XTP bullets use folds and a cannelure to aid in controlled expansion and terminal performance, we have eliminated these from HAP bullets leaving only a sleek and balanced projectile with a protected nose that aids in consistent and reliable feeding in autos.

I bought 100 of these (115gr) since that is all I could find at the time and used the low end 115gr jacketed load data from Lee. 4.5gr of Titegroup.
 
Found a nice load

I too saw the Hogdon Universal 3.3 grain data for the .356 Hornady HAP 125 grain bullets and tried that. All those loads failed to eject from my Berettas and CZ SP-01. They were, however, very accurate. I then experimented with 4 different loads, 4.0 grains of WIN 231, 4.0 grains of Unique, 3.8 grains of Universal, and 3.8 grains of TiteGroup. The WIN 231 and Universal loads were good, fair accuracy and no FTE's. The Unique load was better, also no FTE's. And the TiteGroup load was fantastic --- accuracy greatly improved and no FTE's. All were loaded to a C.O.L of 1.070 in Winchester brass with a slight taper crimp.
 
It really is odd as HAP (Hornady Action Pistol) was made for match shooting hence the name "Action Pistol". Well, with 125 gr bullet, you need to push faster than 1000 fps just to make minor 125 power factor and Hodgdon max load data lists 876 fps. Really odd as to why. I am guessing that a bunch of match shooters must have contacted Hodgdon over this issue. From what I have read, it is a very accurate bullet that produced 0.5" shot group at 25 yards from a mechanical rest and many are pushing the bullet at 130 PF.
9mm 125 GR. HDY HAP W231/HP-38 Dia .355" COL 1.069" Start 2.8 gr (753 fps) 25,300 PSI - Max 3.3 gr (876 fps) 33,600 PSI

38 Super 125 GR. HDY HAP W231/HP-38 Dia .356" COL 1.210" Start 4.8 gr (1,113 fps) 27,100 CUP - Max 5.4 gr (1,237 fps) 31,900 CUP
I got curious and looked around Hodgdon load data and it gets even more interesting. Under 38 Super, 125 gr Hornady HAP is listed with .356" bullet diameter but shows max velocity of 1237 fps! I am really puzzled.

I am interested in what Hodgdon has to say why the load data is so low.
 
Yes it is odd

I did measure the HAP bullets and they were all .356 in diameter. I suspect that Hornady has some pretty good quality control processes in place for producing them. I wish they would test these bullets in their laboratory conditions and publish some load data on them for 9mm. I don't have a chronograph so I have no idea how fast these bullets are traveling or what sort of pressure those loads produce. Would be nice to know.
 
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