Go Back   CMP Forums > CMP Sales > Ammunition
Register FAQ Members List Calendar Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 06-30-2015, 07:04 AM
NCTinkerer NCTinkerer is offline
 
Join Date: Apr 2010
Location: Fayetteville, NC
Posts: 30
Default Defective Winchester Primers damage M96 bolt.

I know this may be old news to some, but maybe not everyone. Last Saturday we had our monthly Vintage Military Rifle match. I shot my M96 and did OK. I noticed several of the fired cases had dirty heads. I'd seen this before on other rifles, so I didn't get too excited. Not this time. Check out the pictures on the links below. If you see case heads that look like these, stop shooting before your bolt face looks like mine. These cartridges were loaded with Winchester Large Rifle Primers, 140gr Nosler Custom Competition bullets, 34 gr of IMR 4895 powder. The brass had been fired 3 times before and was neck sized. I contacted Winchester through their website this morning and am waiting their reply. I buy primers in bulk, so I probably have a lot more of these primers.
Reply With Quote
  #2  
Old 06-30-2015, 07:31 AM
CharlieEcho CharlieEcho is offline
 
Join Date: Oct 2009
Location: Central Ill-annoy
Posts: 1,514
Default Interesting;

It will be interesting to see what Winchester has to say. Thanks for the info. How long have you had the primers? Lot numbers?
Reply With Quote
  #3  
Old 06-30-2015, 07:59 AM
NCTinkerer NCTinkerer is offline
 
Join Date: Apr 2010
Location: Fayetteville, NC
Posts: 30
Default

I've had the primers for several years. I haven't got the lot numbers together yet. There will be more than one lot though. I use WLR primers in the bolt guns and WLM primers in the Highwall. I stocked up prior to the last presidential election. I've been checking my other rifles. Here are pics of my K31 and the worst, my Browning 1885 Highwall BPCR rifle. Some may fault me for not catching this sooner, but in my defense, I have been shooting M1 Garands a lot lately and I only use CCI 34 primers in my Garands. As for the Highwall which has the most damage, you can't see its bolt face without disassembling the receiver, which is almost never needed.


Last edited by NCTinkerer; 06-30-2015 at 08:02 AM.
Reply With Quote
  #4  
Old 06-30-2015, 08:00 AM
abtex1 abtex1 is offline
 
Join Date: Oct 2009
Location: USA
Posts: 1,228
Default

Your brass looks a little buggered, you sure the primer pockets were good to go- proper size and free of debris/carbon when the primers were seated?


Ok I see you've added a pic of a different caliber bolt now.
Reply With Quote
  #5  
Old 06-30-2015, 08:19 AM
NCTinkerer NCTinkerer is offline
 
Join Date: Apr 2010
Location: Fayetteville, NC
Posts: 30
Default

Another rifle bolt. This is getting pretty discouraging. This is from my Smith Corona 1903A3. I clean the primer pockets after tumbling the brass. The 40-65 brass for the 1885 High Wall gets cleaned in a water/soap tumbler and the primer pockets on them is really clean.

Last edited by NCTinkerer; 06-30-2015 at 08:25 AM.
Reply With Quote
  #6  
Old 06-30-2015, 11:51 AM
darr3239 darr3239 is offline
 
Join Date: Dec 2010
Location: Arizona
Posts: 211
Default

Could it be the primer pockets have opened up a bit, and it's not the primers themselves?
Reply With Quote
  #7  
Old 06-30-2015, 12:17 PM
USSR USSR is offline
 
Join Date: Nov 2009
Location: Burdett, NY
Posts: 2,022
Default

Guys,

No, this is not a primer pocket issue. I have experience the same pin-hole gas escape around some Winchester primers I have. It is a fairly well known phenomenon with some of the past year's Winchester Large Rifle primers.

Don
__________________
NRA Certified Metallic Cartridge Reloading Instructor
Reply With Quote
  #8  
Old 06-30-2015, 12:44 PM
milprileb milprileb is offline
 
Join Date: Oct 2009
Location: Stafford, Virginia
Posts: 2,614
Send a message via AIM to milprileb
Default

Just last week a few friends and I were talking about Winchester primers being a bit undersized and now this thread shows up.

NcTinkerer: Could you please mic those primers and tell us the size ? What color box..white or blue ? Maybe any lot numbers on boxes ?

By the way,you belong to a top shelf club. Good folks there .
Reply With Quote
  #9  
Old 06-30-2015, 01:00 PM
Mac Attack Mac Attack is offline
 
Join Date: Jul 2010
Location: Fayetteville, GA
Posts: 801
Default

I have been using Winchester primers primarily for years and noticed the same circular pattern on the face of my M1. I know its not my case prep methods I.e. primer pockets out of spec. Other than cosmetic appearance should I be concerned? My rifles still shoot fine.

Last edited by Mac Attack; 06-30-2015 at 02:20 PM.
Reply With Quote
  #10  
Old 06-30-2015, 02:05 PM
NCTinkerer NCTinkerer is offline
 
Join Date: Apr 2010
Location: Fayetteville, NC
Posts: 30
Default

Below is a pic of the last primer package I emptied. I know this is not limited to one lot # though because I had the same problem with both WLR and WLRM primers. The cups on the remaining primers measure .210 diameter and .118 height. I measured 5 and all were about the same.
Reply With Quote
Reply

Tags
defective, primers, winchester

Thread Tools
Display Modes

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



All times are GMT -5. The time now is 07:47 AM.