THE ACCURATERELOADING.COM BIG BORE FORUMS

Accuratereloading.com    The Accurate Reloading Forums    THE ACCURATE RELOADING.COM FORUMS  Hop To Forum Categories  Rifles  Hop To Forums  Big Bores    Strange ruptured brass .505

Moderators: GeorgeS
Go
New
Find
Notify
Tools
Reply
  
Strange ruptured brass .505 Login/Join
 
one of us
posted
So I’m sighting in my .505 and Delta point and all is going well and hit the 50 yard target dead center and eject the case. I may have heard something strange while firing. The ejected case has 2 small longitudinal splits near the base side by side with gas ejecting from either end. Never seen anything like it nor has Wayne at AHR. This was Corbon expedition safari factory ammo and Jamison brass (new I assume). I have shot quite a bit of this no problem. I have a pic but alas I am a poor poster if anyone wants to help me out. I am pissed as I have a lot of this ammo. Already leaving messages at cor bon.

Any ideas?
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
Moderator
Picture of jeffeosso
posted Hide Post
quote:
Originally posted by gunslinger55:
Jamison brass..

Any ideas?


They had, a couple years ago - (before they were bought), a problem with 505 and cheytech brass ... contact corbon


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about the416AR, 458AR, 470AR, 500AR
Order AR/AccRel Brass
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 34952 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
one of us
posted Hide Post
That would explain it. On another forum consensus is bad brass
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
So Jamison International went tango uniform from illegal international arms shipping? WTF
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
On another big bore forum someone had the identical double split gas ejection issue on some factory sako ammo. Very strange
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
Picture of Michael Robinson
posted Hide Post
I had that happen several years ago with some handloads made using Bell brass.

I pulled the bullets, dumped the powder, fired the primers and destroyed the cases.

Not sure exactly why, but I’m convinced it was bad brass. Never had a problem with any other ammo I ever shot in that rifle.


Mike

An ounce of experience is worth a pound of theory.
 
Posts: 10977 | Location: New England | Registered: 06 June 2003Reply With Quote
one of us
posted Hide Post
Seems Corbon is ignoring me. Time for another call I guess
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
The great run around and BS is being started by the Cor Bon people. Hoky outfit by the sounds of it. Did they change management and get bought out or something?
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
Cor-Bon new ownership has stated they take no responsibility for ammo made under old ownership
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
The more I learn about the "new" cor-bon be advised to stay well away...
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
I bought a batch of Jamison .505 Gibbs brass earlier this year, loaded 20 with a midrange load and the first 4 I shot split thru the shoulder and into the neck. Haven’t shot any more of them.


Karl Evans

 
Posts: 1715 | Location: Waxahachie, Tx | Registered: 03 February 2010Reply With Quote
one of us
posted Hide Post
OK maybe ill track down Jamison but they went under as well Cheytac bought them supposedly
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
I have shot about 120 and this is the first one I noticed. Still have 180 left not willing to throw them away
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
Picture of Michael Robinson
posted Hide Post
Do they look like this?



I destroyed mine because that is plasma cutting and will ruin a rifle barrel.

Luckily, I only fired a couple before I realized what was happening.


Mike

An ounce of experience is worth a pound of theory.
 
Posts: 10977 | Location: New England | Registered: 06 June 2003Reply With Quote
one of us
posted Hide Post
Yep pretty similar. The amount of ammo I have is way more expensive than a new barrel. What type of brass was that?
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
I've only had one do it so far. I guess I'll see if more fail.
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
posted Hide Post
Went through all my spent 505 brass and one with a single slit abs one that has a dual slit. So not a common issue but still concerning
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
one of us
Picture of RIP
posted Hide Post
quote:
Originally posted by Michael Robinson:

First thought on seeing that was: SAAMI .458 Lott trying to keep up with the .458 WIN+P+L 3.8". Big Grin

Last time that BELL .458 Lott brass was discussed, over a decade ago, IIRC, seems like big suspects were
- improper annealing of the brass cups before or between the early steps of the draw
- impurity or inclusions in the brass raw material
- exposure to ammonia somehow along the way degraded the brass
 
Posts: 27780 | Location: KY | Registered: 09 December 2001Reply With Quote
one of us
posted Hide Post
Jeeze Louisez, or something like that!! scary stuff I figure..Never ever have I seen this, old worn out brass with a slit in front of the belt or a head seperation, but nothing like this...


Ray Atkinson
Atkinson Hunting Adventures
10 Ward Lane,
Filer, Idaho, 83328
208-731-4120

rayatkinsonhunting@gmail.com
 
Posts: 36763 | Location: Twin Falls, Idaho | Registered: 04 June 2000Reply With Quote
one of us
posted Hide Post
I had the necks of my .505 Jamison brass split in my .375/ Gibbs .505. Admittedly loaded high pressure with 141 g Retumbo. Velocity 3270 fps. I was only getting 3-5 reloads.
 
Posts: 444 | Registered: 16 April 2012Reply With Quote
one of us
posted Hide Post
That’s a beast. These are new brass factory pressure (low)so much becsone defective
 
Posts: 2458 | Registered: 31 December 2005Reply With Quote
  Powered by Social Strata  
 

Accuratereloading.com    The Accurate Reloading Forums    THE ACCURATE RELOADING.COM FORUMS  Hop To Forum Categories  Rifles  Hop To Forums  Big Bores    Strange ruptured brass .505

Copyright December 1997-2020 Accuratereloading.com


Visit our on-line store for AR Memorabilia