The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools
Old February 16, 2013, 09:58 PM   #1
lah2420
Member
 
Join Date: August 2, 2009
Location: Arkansas
Posts: 51
Hornady 55 gr SP and H355/H322 question

I have a question I hope someone with a lot more experience than I have can answer. I pulled the Hodgdon data off of their site for H355 and H322 for the .223.
Then today I received the Hornady 9th edition manual.

I'm wondering which manual to go with. Below are their listings.

Speer SP 55 gr--- 23 gr start - 25.3 gr max H355 in Hodgdon manual
Hornady SP 55 gr--20.8 gr start - 23.2 gr max H355 in Hornady manual

Speer SP 55 gr--21 gr start - 23 gr max H322 in Hodgdon manual
Hornady SP 55 gr--19.5 gr start - 23.1 gr max H322 in Hornady manual

The H322 max loads are similar in both manuals for the 2 bullets, but the H355 is totally different.
I have the Hornady 55 gr SP bullet and Hodgdon did not show data for that particular bullet so I went with the closest similar one as instructed.

Hope that wasn't too confusing.
lah2420 is offline  
Old February 16, 2013, 10:51 PM   #2
rg1
Senior Member
 
Join Date: November 6, 2001
Posts: 775
Most agree that the H335 data in Hornady's manual is conservative. Maybe in a tight short throated bolt action with the exact rifle they used in their tests. I don't think they are correct and velocities they list I don't believe to be accurate. However they are supposed to be the experts and have the lab equipment to test pressure so I'm not recommending to disregard their load data. I shoot the Hornady 55 fmj and 55 SP's with H335 using RP 7 1/2 primers in LC, Rem., Win, and WCC brass from 24.5-25 grains with no issues in both AR's and a bolt action .223 Rem. I would just start working up loads in your rifles with start charges within Hornady's range and keep working up into Hodgdon's levels watching for pressure signs in your rifle. Speer, Nosler, and Sierra list charges higher than Hornady's maximum with their 55 grain bullets. I'd look for best accuracy in your rifle and I bet it's from 24-24.8 grains. I trust Hodgdon's data for the Hornady 55 SP or FMJ even though they used a Speer bullet. My chrono results match Hodgdon's data in my rifles. I shoot mostly Hornady bullets and like their manuals and follow their data in other calibers but their 55 grain .223 H335 data needs reworked.

Last edited by rg1; February 16, 2013 at 10:57 PM.
rg1 is offline  
Old February 16, 2013, 10:51 PM   #3
chris in va
Senior Member
 
Join Date: December 26, 2004
Location: Louisville KY
Posts: 12,542
That Hornady manual is way off from my Lyman 49th.

H335 24.3-27max 55 gr JSP.
chris in va is offline  
Old February 16, 2013, 11:11 PM   #4
lah2420
Member
 
Join Date: August 2, 2009
Location: Arkansas
Posts: 51
Thanks. My chrono was reading right above 3100 fps with 24.5 gr of H355 out of a stock mini 14. At 24 gr it was just under 3000. When I tried 25 gr it stayed just above 3100 and my group spread out considerably. Then I received the Hornady manual and wondered if I was going to have to start all over again.
I had started with Hodgdon's 23 gr start level which Hornady showed as max.
lah2420 is offline  
Old February 17, 2013, 12:24 AM   #5
mohr308
Senior Member
 
Join Date: January 15, 2012
Location: Western New York
Posts: 423
http://data.hodgdon.com/cartridge_load.asp this may be helpful. Funny you posted this, because I'm going to start loading the 55gr hornady sp with h335.
__________________
Lock and load, the zombies (democrats) are coming (to take your guns)!
mohr308 is offline  
Old February 17, 2013, 02:53 PM   #6
lah2420
Member
 
Join Date: August 2, 2009
Location: Arkansas
Posts: 51
That's where I got the Hodgdon data. Like I said, it is different from the Hornady data on the H355. But the H322 data was close to the same.
lah2420 is offline  
Old February 17, 2013, 04:38 PM   #7
mohr308
Senior Member
 
Join Date: January 15, 2012
Location: Western New York
Posts: 423
What's you COL with that bullet? Are you around 2.200" to the cannelure?
__________________
Lock and load, the zombies (democrats) are coming (to take your guns)!
mohr308 is offline  
Old February 17, 2013, 04:57 PM   #8
lah2420
Member
 
Join Date: August 2, 2009
Location: Arkansas
Posts: 51
2.200 puts it right in the middle of the cannelure. That's with a case length of 1.760.
lah2420 is offline  
Old February 17, 2013, 05:01 PM   #9
mohr308
Senior Member
 
Join Date: January 15, 2012
Location: Western New York
Posts: 423
Thanks! Was that in your manual?
__________________
Lock and load, the zombies (democrats) are coming (to take your guns)!
mohr308 is offline  
Old February 17, 2013, 05:53 PM   #10
rebs
Senior Member
 
Join Date: January 10, 2012
Posts: 2,240
So which data are you guys using, the Hornady or the Hodgedon ?

As a side note my accuracy load for Hornady 55 gr sp is 24.0 of H335 with a OAL of 2.200, anything over that and my groups start to open up.
rebs is offline  
Old February 17, 2013, 06:08 PM   #11
mohr308
Senior Member
 
Join Date: January 15, 2012
Location: Western New York
Posts: 423
I would probably load using hodgdons data, it's seems like it may suit me better because im loading for my AR
__________________
Lock and load, the zombies (democrats) are coming (to take your guns)!
mohr308 is offline  
Old February 17, 2013, 06:24 PM   #12
mohr308
Senior Member
 
Join Date: January 15, 2012
Location: Western New York
Posts: 423
I have a lot of work to do...

Out of these four bullets, I have only loaded 1. I would like to say I'm gonna be busy, but I don't want to use all my resources to load test from left to right is:
65gr SGK, 55gr Barnes TTSX, 55gr Nosler varmageddon, 55gr hornady sp.
Attached Images
File Type: jpg image.jpg (243.3 KB, 21 views)
__________________
Lock and load, the zombies (democrats) are coming (to take your guns)!
mohr308 is offline  
Old February 17, 2013, 09:05 PM   #13
lah2420
Member
 
Join Date: August 2, 2009
Location: Arkansas
Posts: 51
"Thanks! Was that in your manual?"

It was actually a combination of the load manual showed 2.200 and my Lee sheet from the die box gave the case length of 1.76".

Each gun is different. Mine gave best accuracy so far with 24.5 gr and a minimum crimp with the Lee Factory Crimp die. No crimp was not good and more crimp really threw things out of kilter. Of course I need to test that load some more to make sure it holds true with my first rounds tested.
lah2420 is offline  
Old February 18, 2013, 03:26 AM   #14
Clark
Senior Member
 
Join Date: December 4, 1999
Location: WA, the ever blue state
Posts: 2,996
CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
Range report from 8-19-2003, from me visiting the Tacoma Sportman Club range in Puyallup, members only range.
Hodgdon website: 223 Rem, H335, 25.3 GR. 55 GR. SPR SP, 2.200", 24" barrel, 3203 fps, 49,300 CUP
Test: Ruger #1 [the standard 26" #1, not the 24" varmint model], CCI 400 small rifle primers, LC brass once fired processed from Scharch and prepped by me, 55 gr Vmax moly, H335
pic left to right: unfired, 28, 29, 30, and 31 gr.

unfired, extractor groove .329"
28 gr, extractor groove .329", 11% overload 69 kpsi Quickload
29 gr, extractor groove .329", 15% overload 80kpsi Quickload
30 gr, extractor groove .3295", 19% overload 92kpsi Quickload
31 gr, extractor groove .3320", 23% overload 106kpsi Quickload

What does it all mean?
The published data is 25.3 gr
The threshold of long brass life is between 29 and 30 gr
__________________
The word 'forum" does not mean "not criticizing books."
"Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist.
Are we a nation of competing ideas, or a nation of forced conformity of thought?
Clark is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 08:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.09319 seconds with 10 queries