reloading .357 mag - The Firearms Forum

Grahajp · 03-23-2010, 09:47 AM

I recently recieved a box of Hornady 180 gr HP/XTP bullets as a gift (and can't take 'em back). I am sort of a newbie to reloading but reload 158 gr for the .357 Mag with H110 powder. Is it possible to reload this heavier weight of bullet... or should I just forget it and sell them to someone that has a rifle?

carver · 03-23-2010, 10:13 AM

Here is just one load that you can use. Any good reloading manual will have data on reloading the 180gr. bullets for .357.
Accurate powder: No.9 180 HDY XTP 10.8 = 1,059fps; 12.0 = 1,202 @ 33,540psi; c0l = 1.575"

Grahajp · 03-23-2010, 12:21 PM

Thank you for the input Carver. I think I will keep them and give it a try.

howlnmad · 03-23-2010, 02:11 PM

The answer to your question is... yes, you can use the H-110 with those bullets.
Lyman shows:
start ld- 13.4 gr @ 947 fps
max ld- 14.5 gr @ 1101 fps
primer- SPM
OAL- 1.585"
(the max charge was the most accurate tested)

Both Hodgdon and Lee have loads available for that bullet and powder as well. Look them up.

Grahajp · 03-23-2010, 02:31 PM

Thanks howlIn. I'll do my research.

howlnmad · 03-23-2010, 02:41 PM

Quote:

Originally Posted by Grahajp

Thanks howlIn. I'll do my research.

Glad to be of some help. But PLEASE double check my posting. I'm a lousy sexitary and my typing is even worse.

JLA · 03-23-2010, 04:02 PM

the 180s penetrate like nothing else on hogs...

Bindernut · 03-23-2010, 04:59 PM

Yup, I have loaded the 180gr XTP/HP (and the Sierra 170gr JHP) for whitetail in the past.
I used to use AA#9, but the Hornady manual has data for H110 too.

Hornady's listed max load for the 180gr is only 13.1gr though (which doesn't really jive with howlin's Lyman data) so as he already suggested double-check the data before you start.

Also, you can check Hodgdon's online reloading data. http://data.hodgdon.com/cartridge_load.asp
They show the 180gr (Nosler Partition instead of XTP though) having a max of 13.5gr H110.

Grahajp · 03-23-2010, 06:19 PM

Agreed...he did say he WAS a lousy sexitary

howlnmad · 03-23-2010, 06:59 PM

Bindernut
That is strange because both Lee and Hodgdon have a lower starting load but I double checked and that's what's printed in my Lyman 49th edition. Lee also calls for SP primers while Hodgdon and Lyman both call for SPM primers.I don't have my Hornady with me so I can't look in that one.

howlnmad

muddober · 03-23-2010, 11:11 PM

The 14.5 grains of H110, 180 grain bullets with small magnum primers is all just fine. You will not shoot many of them in an alloy stuby without a sore hand but in an all steel gun with a 4" or better barrel while recoil will be stout it is tolerable and safe.

Ron

Bindernut · 03-24-2010, 09:10 AM

Quote:

Originally Posted by howlnmad

Bindernut
That is strange because both Lee and Hodgdon have a lower starting load but I double checked and that's what's printed in my Lyman 49th edition. Lee also calls for SP primers while Hodgdon and Lyman both call for SPM primers.I don't have my Hornady with me so I can't look in that one.

howlnmad

Yeah...it's interesting how much loads can vary between the different manuals.
All boils down to what gun (or pressure barrel) was used for the load, the lot of powder, brass, primer, weather on the day the data was logged, etc.
I don't have a current Lyman manual (haven't bought one for years), but it's very well possible that they found a higher charge before hitting the pressure peak for the cartridge.
I'm not saying your Lyman data is flawed...it is just higher than what I've got in my books so I figured it would be good to post the usual warning to double-check especially since the OP admitted that he's fairly new to reloading.

I don't know how to 'splain all the differences...it is just kinda odd some times!

That's why I like to have several manuals handy to cross-reference data.

Grahajp · 03-24-2010, 03:12 PM

Quote:

Originally Posted by muddober

The 14.5 grains of H110, 180 grain bullets with small magnum primers is all just fine. You will not shoot many of them in an alloy stuby without a sore hand but in an all steel gun with a 4" or better barrel while recoil will be stout it is tolerable and safe.

Ron

It is a GP100 w/ a 6" shrouded barrel. I will start with a lghter load and work it up, just to be safe. Probably won't be as bad as my .41 Mag with max loads though...it will make the hand ache after several rounds thru it!

Grahajp · 03-24-2010, 03:19 PM

Thanks to each of you for your input, I really do appreciate it. I don't have a lot of experience and hearing from my Seniors

with the experience means alot.

03-23-2010, 09:47 AM	#1
Grahajp V.I.P. Member Join Date: Jul 2009 Location: North Central Oklahoma Posts: 66	reloading .357 mag I recently recieved a box of Hornady 180 gr HP/XTP bullets as a gift (and can't take 'em back). I am sort of a newbie to reloading but reload 158 gr for the .357 Mag with H110 powder. Is it possible to reload this heavier weight of bullet... or should I just forget it and sell them to someone that has a rifle? -->

03-23-2010, 10:13 AM	#2
carver TFF Moderator/Host Join Date: Jul 2008 Location: DAV, Deep in the Pineywoods of East Texas, just west of Shreveport, LA Contributor Posts: 11,542	Re: reloading .357 mag Here is just one load that you can use. Any good reloading manual will have data on reloading the 180gr. bullets for .357. Accurate powder: No.9 180 HDY XTP 10.8 = 1,059fps; 12.0 = 1,202 @ 33,540psi; c0l = 1.575" __________________ Y'all be safe now, ya hear! Lamentations Chapter 5: 1. Remember, O LORD, what is come upon us: consider, and behold our reproach. 2. Our inheritance is turned to strangers, our houses to aliens. 3. We are orphans and fatherless, our mothers [are] as widows. 5. Our necks [are] under persecution: we labour, [and] have no rest. 16. The crown is fallen [from] our head: woe unto us, that we have sinned! 21. Turn thou us unto thee, O LORD, and we shall be turned; renew our days as of old. Last edited by carver; 03-23-2010 at 10:15 AM..

03-23-2010, 12:21 PM	#3
Grahajp V.I.P. Member Join Date: Jul 2009 Location: North Central Oklahoma Posts: 66	Re: reloading .357 mag Thank you for the input Carver. I think I will keep them and give it a try.

03-23-2010, 02:11 PM	#4
howlnmad Advanced Senior Member Join Date: Nov 2008 Location: Harriman, Tn Contributor Posts: 2,637	Re: reloading .357 mag The answer to your question is... yes, you can use the H-110 with those bullets. Lyman shows: start ld- 13.4 gr @ 947 fps max ld- 14.5 gr @ 1101 fps primer- SPM OAL- 1.585" (the max charge was the most accurate tested) Both Hodgdon and Lee have loads available for that bullet and powder as well. Look them up. __________________

03-23-2010, 02:31 PM	#5
Grahajp V.I.P. Member Join Date: Jul 2009 Location: North Central Oklahoma Posts: 66	Re: reloading .357 mag Thanks howlIn. I'll do my research.

03-23-2010, 04:02 PM	#7
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,407	Re: reloading .357 mag the 180s penetrate like nothing else on hogs... __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!

03-23-2010, 04:59 PM	#8
Bindernut Advanced Senior Member Join Date: Oct 2007 Location: ND, USA Posts: 2,489	Re: reloading .357 mag Yup, I have loaded the 180gr XTP/HP (and the Sierra 170gr JHP) for whitetail in the past. I used to use AA#9, but the Hornady manual has data for H110 too. Hornady's listed max load for the 180gr is only 13.1gr though (which doesn't really jive with howlin's Lyman data) so as he already suggested double-check the data before you start. Also, you can check Hodgdon's online reloading data. http://data.hodgdon.com/cartridge_load.asp They show the 180gr (Nosler Partition instead of XTP though) having a max of 13.5gr H110.

03-23-2010, 06:19 PM	#9
Grahajp V.I.P. Member Join Date: Jul 2009 Location: North Central Oklahoma Posts: 66	Re: reloading .357 mag Agreed...he did say he WAS a lousy sexitary

03-23-2010, 06:59 PM	#10
howlnmad Advanced Senior Member Join Date: Nov 2008 Location: Harriman, Tn Contributor Posts: 2,637	Re: reloading .357 mag Bindernut That is strange because both Lee and Hodgdon have a lower starting load but I double checked and that's what's printed in my Lyman 49th edition. Lee also calls for SP primers while Hodgdon and Lyman both call for SPM primers.I don't have my Hornady with me so I can't look in that one. howlnmad __________________

03-23-2010, 11:11 PM	#11
muddober Advanced Senior Member Join Date: Sep 2008 Posts: 1,436	Re: reloading .357 mag The 14.5 grains of H110, 180 grain bullets with small magnum primers is all just fine. You will not shoot many of them in an alloy stuby without a sore hand but in an all steel gun with a 4" or better barrel while recoil will be stout it is tolerable and safe. Ron

03-24-2010, 03:19 PM	#14
Grahajp V.I.P. Member Join Date: Jul 2009 Location: North Central Oklahoma Posts: 66	Re: reloading .357 mag Thanks to each of you for your input, I really do appreciate it. I don't have a lot of experience and hearing from my Seniorswith the experience means alot.