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hornady xtp 200 gr 44 mag question

This is a discussion on hornady xtp 200 gr 44 mag question within the Reloading forums, part of the Firearm Forum category; in my nosler manual it states I can go with 11.5 gr of unique under a 200gr jhp. this is the starting load. the xtps ...


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Old May 17th, 2017, 09:48 AM   #1
 
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hornady xtp 200 gr 44 mag question

in my nosler manual it states I can go with 11.5 gr of unique under a 200gr jhp. this is the starting load. the xtps are a jhp but do they differ in any way? I don't want to shoot the 5 I have loaded for my 44 mag until im sure its ok.



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Old May 17th, 2017, 10:17 AM   #2
 
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go to Alliant web site, data and shows range for unique of 8.3fr. to 12.4 for Speer Mag. JHP.

Alliant Powder - Reloader's Guide
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Old May 17th, 2017, 10:37 AM   #3
 
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ok thanks so it looks like im still in the ball park of a safe round for the redhawk
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Old May 17th, 2017, 10:50 AM   #4
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nashville lpd 13, You can get yourself in a heap of trouble using a different brand bullet than your reloading manual. Each bullet has a manufacturer's recommended seating depth stated as Cartridge Overall Length. Bullet manufacturers actually use their seating depth when they pressure test their loads. For a Hornady bullet, you should be using the Hornady manual because chamber pressure could be disastrous if the bullet is seated too deep and the load will not produce optimum results if the bullet is seated too shallow. The Hornady manual reference for a 200gr XTP indicates a COL of 1.500".

MartyMM, I would give you the same advise ... a Speer 200gr JHP bullet has a different COL, 1.590" ..... a very notable .090" difference from Hornady XTP seating depth.
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Old May 17th, 2017, 10:59 AM   #5
 
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thanks you saved me I appreciate that
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Old May 17th, 2017, 11:04 AM   #6
 
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Understood, I also checked my Lee manual and they showed for a Jacketed bullet 200gr as between 10.9 and 12.4 gr. with a min. oal 1.590. Alliant data showed same oal.
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Old May 17th, 2017, 12:48 PM   #7
 
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Quote:
Originally Posted by nashville lpd 13 View Post
in my nosler manual it states I can go with 11.5 gr of unique under a 200gr jhp. this is the starting load. the xtps are a jhp but do they differ in any way? I don't want to shoot the 5 I have loaded for my 44 mag until im sure its ok.
I will check my new Hornady Manual on that data for you , will going home shortly, you want to be safe but no use pulling loads down if you don't have to.....Gary
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Old May 17th, 2017, 01:34 PM   #8
 
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Quote:
Originally Posted by Iowegan View Post
nashville lpd 13, You can get yourself in a heap of trouble using a different brand bullet than your reloading manual. Each bullet has a manufacturer's recommended seating depth stated as Cartridge Overall Length. Bullet manufacturers actually use their seating depth when they pressure test their loads. For a Hornady bullet, you should be using the Hornady manual because chamber pressure could be disastrous if the bullet is seated too deep and the load will not produce optimum results if the bullet is seated too shallow. The Hornady manual reference for a 200gr XTP indicates a COL of 1.500".

MartyMM, I would give you the same advise ... a Speer 200gr JHP bullet has a different COL, 1.590" ..... a very notable .090" difference from Hornady XTP seating depth.
I'll second using ONLY the manufacturers manual for a given bullet. Maybe you'll be alright swapping info and maybe not. Just a quick story of my first hand experience.

Way back about 1990 or so I had purchased a new Ruger SRH. I used the .44 for deer hunting in the deep woods of Maine. I had worked up a Sierra 300 gr load using 2400. Worked it up to the max listed in the Sierra manual of 19.1 grains. Shot excellent with no issues.

Just before hunting season I ran out of the Sierra's. Attempted to order and they were on back order. Oh well let me substitute the 300 XTP Hornady. Got them a couple days before we left. This was before the internet and I did not have a Hornady manual.

I assumed, as many still do, that data for the same weight bullet would interchange......WRONG...........Loaded up a batch and we left for camp. Upon arrival I figured I better do a few test shots to check for accuracy. Loaded up the SRH and fired a round. Very funny sounding report. I stopped and opened the cylinder. Primer was flat. Ejection was sticky on the fired round. Promptly went into town and bought a box of Remington Factory.

After I got home I purchased a Hornady manual. Much to my surprise the listed max for the 300 grain XTP was 17.1 grains of 2400. My assuming had resulted in a round loaded two FULL grains over the listed max at 19.1. Lucky I was shooting a SRH or things might have been different.

EVER since then I have purchased a Manufactures manual for the brand of bullet I'm loading and properly worked up all max loads. Just my two cents. YMMV.
Bepe

FYI per the Hornady 8th edition the max load for the 200 gr XTP and Unique is 12.9 grains @ 1.600 COL. I can't explain the difference in COL over Eye Ohs info unless one is a misprint.

Last edited by Bepe; May 17th, 2017 at 01:42 PM.
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Old May 17th, 2017, 02:04 PM   #9
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Bepe, Good catch .... I double checked and you are right .... Hornady recommends a COL of 1.600" with the 200 gr XTP. This is what happens when you have too many reloading manuals open at once and are an old fart that CRS. Sorry for the mistake .... a perfect reason why people should buy their own manuals rather than rely on some old guy on the Internet.
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Old May 17th, 2017, 02:29 PM   #10
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To further support Bepe's post, back when I had my gunsmith shop, a customer brought in a 9mm Mod 39 S&W pistol .... with the barrel all blown to hell. Same basic scenario .... he had been loading with 6gr of Unique and 115gr FMJ Hornady bullets with a COL of 1.100" for quite some time .... a pretty hot load that produces 33,384 psi chamber pressure (according to QuickLOAD). He ran out of Hornady bullets and substituted with Speer 115gr FMJs .... same COL. Turns out the load with Speer bullets produces about 45K psi .... obviously more than a Mod 39 can handle. The good news was .... a new $50 barrel and he was back in business .... this time using the same brand manual as his bullets.
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Old May 17th, 2017, 02:49 PM   #11
 
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Good stuff Eye Oh. I always hope that the new to reloading folks heed your advice. It is always spot on.
Regards Bepe
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Old May 17th, 2017, 03:48 PM   #12
 
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Hornady Handbook of Cartridge Reloading 8th Edition
44 magnum pistol data section
200 grain HP-XTP
Unique powder
Not one load shown with Unique and that bullet.... "what a revolting development this is"

Looks like Hornady is not going to help ...Sorry
Gary
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Old May 17th, 2017, 05:17 PM   #13
 
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Quote:
Originally Posted by gwpercle View Post
Hornady Handbook of Cartridge Reloading 8th Edition
44 magnum pistol data section
200 grain HP-XTP
Unique powder
Not one load shown with Unique and that bullet.... "what a revolting development this is"

Looks like Hornady is not going to help ...Sorry
Gary
Hornady 9th Edition does have a load for Unique and the 200 XTP. It shows 11.4 @1300fps up to 12.9 @1400fps. It also graphically illustrates Unique as the lowest velocity range of the bunch, most of them more a true magnum powder (slow burners). It should be useful to also know that they show a 44 Special max with Unique of 7.0@850fps. The gap there between the two cartridge should be more of what I would go for with Unique and similar that would otherwise generate high pressures. I am currently using a load of Unique behind 240 grain hard cast that is below Lyman's minimum, but not by much.
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Old May 17th, 2017, 05:21 PM   #14
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gwpercle, You're a couple editions behind. The 10th Ed shows 11.4gr @ 1300 fps and 12.9gr @ 1400 fps for Unique with a 200gr XTP.
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Old May 18th, 2017, 01:22 AM   #15
 
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Quote:
Originally Posted by gwpercle View Post
Hornady Handbook of Cartridge Reloading 8th Edition
44 magnum pistol data section
200 grain HP-XTP
Unique powder
Not one load shown with Unique and that bullet.... "what a revolting development this is"

Looks like Hornady is not going to help ...Sorry
Gary
My Hornady #8 has the 200 gr XTP with Unique data. Maybe I got a late edition. Must be the same data as the 9th and 10th as it only lists two loads a start and max.
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