HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: customar15
New Today: 1
New Yesterday: 1
Overall: 12830

People Online:
Members: 0
Visitors: 82
BOT: 1
Total: 83
Who Is Where:
 Visitors:
01: Forums
02: Home
03: Forums
04: Home
05: Forums
06: Forums
07: Forums
08: Home
09: Forums
10: Forums
11: Forums
12: Forums
13: Home
14: Forums
15: Forums
16: Forums
17: Forums
18: Forums
19: Your Account
20: Home
21: Home
22: Home
23: Forums
24: Forums
25: Forums
26: Forums
27: Home
28: Home
29: Forums
30: Home
31: Forums
32: Forums
33: Forums
34: Forums
35: Forums
36: Forums
37: Home
38: Home
39: Forums
40: Forums
41: Forums
42: News
43: Home
44: Forums
45: Forums
46: Forums
47: Forums
48: Forums
49: Forums
50: Forums
51: Forums
52: Forums
53: Forums
54: Home
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Home
61: Forums
62: Photo Albums
63: Your Account
64: Forums
65: Forums
66: Forums
67: Your Account
68: Your Account
69: Forums
70: Home
71: Forums
72: Forums
73: Forums
74: Home
75: Forums
76: Forums
77: Home
78: Forums
79: Home
80: Forums
81: Forums
82: Forums
  BOT:
01: Forums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 307
 Pictures: 2397
  · Views: 666444
  · Votes: 1312
  · Comments: 86
 

IMR Powder recall - 4007SSC
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition

View previous topic :: View next topic  
Author Message
English Mike
Super Member
Super Member


Joined: Jan 08, 2007
Posts: 1558
Location: Whitehaven, Cumbria, UK

PostPosted: Fri Sep 04, 2015 8:37 am    Post subject: IMR Powder recall - 4007SSC Reply with quote

Details here.
Back to top
View user's profile
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 4013
Location: South-Eastern Washington - the State

PostPosted: Fri Sep 04, 2015 6:13 pm    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

Correct me if I am wrong but when smokeless powder deteriorates it loses its potency. what makes this powder spontaneously ignite? What makes this powder dangerous?

This sounds like they are covering something up... (not usually prone to conspiracy theories)

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
SingleShotLover
Super Member
Super Member


Joined: Dec 26, 2007
Posts: 999
Location: Illinois

PostPosted: Fri Sep 04, 2015 6:25 pm    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

This has been a problem of various degrees ever since we left the era of sulfur, charcoal and saltpeter being the components to make gunpowder. Today's powders have various chemical blends that may deteriorate at differing rates creating unstable conditions under certain circumstances. In some cases the deterioration can create heat which, if severe enough, we all know isn't healthy around powder.

_________________
If you can't hit it with one, you probably can't with two either!

The biggest problem with a closed mind is that it never seems to come with a closed mouth.

SSL
Back to top
View user's profile Photo Gallery
Aloysius
Super Member
Super Member


Joined: Nov 03, 2009
Posts: 2260
Location: B., Belgium

PostPosted: Sat Sep 05, 2015 12:33 am    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

PaulS wrote:
Correct me if I am wrong but when smokeless powder deteriorates it loses its potency. what makes this powder spontaneously ignite? What makes this powder dangerous?

This sounds like they are covering something up... (not usually prone to conspiracy theories)

when you "weld" your bullet to the case due to corrosion (cristals can form very strong connections), powder can do "funny" things when ignited in a closed chamber
Back to top
View user's profile
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 4013
Location: South-Eastern Washington - the State

PostPosted: Sun Sep 06, 2015 1:31 am    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

Yes, but they are not talking about stored ammo the company is talking about it being dangerous to use at all. It doesn't make sense to me.

After all, it nitrocellulose - a single based powder. The only way it can cause heat is if you expose it to strong acids.

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
Aloysius
Super Member
Super Member


Joined: Nov 03, 2009
Posts: 2260
Location: B., Belgium

PostPosted: Sun Sep 06, 2015 3:10 am    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

You're right. When this powder is still stored in its original packaging, then somebody has made a big mistake (QC) or somebody at the top was willing to make big profits out of waste material. Both give a bad taste.
Back to top
View user's profile
MacD
Super Member
Super Member


Joined: Apr 08, 2011
Posts: 1052
Location: Canada

PostPosted: Sun Sep 06, 2015 3:29 am    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

From Wikipedia
Nitrocellulose deteriorates with time, yielding acidic byproducts. Those byproducts catalyze the further deterioration, increasing its rate. The released heat, in case of bulk storage of the powder, or too large blocks of solid propellant, can cause self-ignition of the material. Single-base nitrocellulose propellants are hygroscopic and most susceptible to degradation; double-base and triple-base propellants tend to deteriorate more slowly. To neutralize the decomposition products, which could otherwise cause corrosion of metals of the cartridges and gun barrels, calcium carbonate is added to some formulations.

To prevent buildup of the deterioration products, stabilizers are added. Diphenylamine is one of the most common stabilizers used. Nitrated analogs of diphenylamine formed in the process of stabilizing decomposing powder are sometimes used as stabilizers themselves.[20][21] The stabilizers are added in the amount of 0.5–2% of the total amount of the formulation; higher amounts tend to degrade its ballistic properties. The amount of the stabilizer is depleted with time. Propellants in storage should be periodically tested for the amount of stabilizer remaining, as its depletion may lead to auto-ignition of the propellant.

_________________
La a'Blair s'math n Cairdean
(Friends are good on the day of battle)
Back to top
View user's profile
dhc4ever
Super Member
Super Member


Joined: May 26, 2011
Posts: 2643
Location: Ipswich, Queensland Australia

PostPosted: Sun Sep 06, 2015 4:57 pm    Post subject: Re: IMR Powder recall - 4007SSC Reply with quote

Good info Mac.
The recall sounds like a very big stuff up in production of those batches.
At least they have a handle on issue.
The question is will they get all of those batches back, recalls are rarely 100% effective.

_________________
Pete

Dont do anything you wont like explaining to the paramedics..............
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition
Page 1 of 1
All times are GMT - 7 Hours



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by *Dizfunkshunal* :.