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Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Feb 2002
Posts: 32,044 |
This why you should change carry ammo every few months. I have been carrying my Sig P239 in 357 Sig for the last week or so and decided it was time to shoot up the carry ammo which as been in the pistol for at least a year. This is the first shot of the one in the chamber and it was a dud primer. So i fired all the others in the mag with no problems. I guess you should change carry ammo more often than every year. Hornady 124 gr XTP Factory. ![[Linked Image]](http://img.photobucket.com/albums/v378/bea175/Sig%20357%20S1_zpsc32dwadu.jpg) ![[Linked Image]](http://img.photobucket.com/albums/v378/bea175/Sig%20357%20S2_zpspiisduwk.jpg)
A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.
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Campfire Outfitter
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Campfire Outfitter
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Every 3 months I fire off the mag.
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Joined: Aug 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2009
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Great choice in gun and caliber btw
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Joined: Aug 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2009
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Do those have sealed primers?
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Joined: Feb 2002
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Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Feb 2002
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Not sure if Hornady seals them or not. I try not to over lube my pistols . I have so many carry pistol it hard to keep up with how long they have been loaded with the same ammo. This could have been just a bad primer from the factory and nothing else.
A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.
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Joined: Nov 2008
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Campfire Tracker
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Campfire Tracker
Joined: Nov 2008
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If it was good out of the box, it should be good a year from then. Unless you somehow contaminated the primer with lube (which I believe is actually more of a myth than reality) my guess is it was a dud the day you opened the box. The good ones would still fire just fine a couple of decades later.
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Joined: Feb 2002
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Campfire 'Bwana
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OP
Campfire 'Bwana
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A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.
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Joined: Nov 2004
Posts: 959
Campfire Regular
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Campfire Regular
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Very good to find out now, than in a stress situation.
Could be your lucky day!
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Joined: Feb 2002
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Campfire 'Bwana
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OP
Campfire 'Bwana
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A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.
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Campfire Outfitter
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This is interesting: The round in question was examined by the manufacturer, who discovered that the primer mix had been knocked out of the primer when the round was cycled through the firearm multiple times. Two cases of the same ammunition (presumably from the same lot) were tested and functioned normally. Federal, Remington and Winchester all recommend that cartridges should not be chambered more than twice before being discarded. Bullet setback can cause pressure spikes and primers can go dead. When reloading a magazine with carry ammo and chambering the first round, I always control the slide with my left hand to slow down the return to battery. Not too slow, because I want the rim of the cartridge to interact normally with the extractor. I've measured my top round after reloading a couple of times (9mm) and found no setbacks. I'm thinking that the reduced acceleration/deceleration is easier on the primer compound, too. Still, buying a new box of carry ammo once a year is no hardship.
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Campfire Kahuna
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Campfire Kahuna
Joined: Apr 2011
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Very good to find out now, than in a stress situation.
Could be your lucky day! No doubt!
"Allways speak the truth and you will never have to remember what you said before..." Sam Houston
Texans, "We say Grace, We Say Mam, If You Don't Like it, We Don't Give a Damn!"
~Molɔ̀ːn Labé Skýla~
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Campfire Regular
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Campfire Regular
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THX for that link to Modernserviceweapons. Lotsa good stuff.
Whom the gods wish to destroy they first make mad.
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Campfire Kahuna
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Campfire Kahuna
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THX for that link to Modernserviceweapons. Lotsa good stuff. Indeed...
Ex- USN (SS) '66-'69
Pro-Constitution.
LET'S GO BRANDON!!!
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Feb 2002
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This is interesting: The round in question was examined by the manufacturer, who discovered that the primer mix had been knocked out of the primer when the round was cycled through the firearm multiple times. Two cases of the same ammunition (presumably from the same lot) were tested and functioned normally. Federal, Remington and Winchester all recommend that cartridges should not be chambered more than twice before being discarded. Bullet setback can cause pressure spikes and primers can go dead. When reloading a magazine with carry ammo and chambering the first round, I always control the slide with my left hand to slow down the return to battery. Not too slow, because I want the rim of the cartridge to interact normally with the extractor. I've measured my top round after reloading a couple of times (9mm) and found no setbacks. I'm thinking that the reduced acceleration/deceleration is easier on the primer compound, too. Still, buying a new box of carry ammo once a year is no hardship. I purchased a case of this ammo when i acquired it.
A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.
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Joined: Sep 2006
Posts: 23,628
Campfire Ranger
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Campfire Ranger
Joined: Sep 2006
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If it was good out of the box, it should be good a year from then. Unless you somehow contaminated the primer with lube (which I believe is actually more of a myth than reality) my guess is it was a dud the day you opened the box. The good ones would still fire just fine a couple of decades later. This ^ most likely. MM
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Campfire Outfitter
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Campfire Outfitter
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Doctor friend has a Glock 26. As he can't bring it into the hospital it sat in the car for hours on end at over 100* heat in the summer and -20* in the winter. The ammo was in the gun for a year and when he went to fire it off to change out THE WHOLE MAG was cooked. Now he changes out every 4 months.
As to factory rounds being duds, when I worked for Dallas PD the range collected bad factory carry rounds and had a large box of them...so it happens..too often.
Bob
If you can not deal with reality, reality will deal with you....
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Campfire Kahuna
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Campfire Kahuna
Joined: Nov 2003
Posts: 67,694 |
the only round you ever know for sure that is going to work, is the last one that went "BANG" for ya.
Sam......
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Campfire Ranger
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Campfire Ranger
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Maybe we should get some dummies and have a pard incorporate them randomly in mags during training to work on immediate action drills.
Mike
God, Family, and Country.
NRA Endowment Member
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Joined: Sep 2006
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Campfire Ranger
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Campfire Ranger
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Doctor friend has a Glock 26. As he can't bring it into the hospital it sat in the car for hours on end at over 100* heat in the summer .
That's a very, very valid reason for frequent changes of carry ammo. MM
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Joined: Apr 2011
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Campfire Kahuna
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Campfire Kahuna
Joined: Apr 2011
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I usually shoot and replace my carry ammo at least twice a year. In all Calibers, I've gone to strictly Speer ammo, for my CCW ammo. It seems to be the most reliable factory ammo, IMO.
Last edited by chlinstructor; 07/08/15.
"Allways speak the truth and you will never have to remember what you said before..." Sam Houston
Texans, "We say Grace, We Say Mam, If You Don't Like it, We Don't Give a Damn!"
~Molɔ̀ːn Labé Skýla~
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