Norinco .223 ammo keyholing

How many blown and pierced primers does it take to ruin a bolt? I've ran about 3200 rounds of Norinco ammo through my Black Special. Had a few failure to fires. Nothing exciting.
 
More importantly, anyone running Norc needs to check if a magnet will stick to the bullet (the projectile, not the case) if it does dispose of all of it. If the magnet sticks you have bi-metal jacketed bullets which is a steel/copper alloy which will wear out your barrel. if you run bi-metal jacketed bullets you can expect less that 1/3 the barrel life from your rifle. In an AR this is less of an issue as a new barrel will cost you $200 (unless you like quality barrels like Noveske) but in rifles like the Swiss and others that require a gunsmith to install a hard to find and expensive barrel you would be silly to keep running it. If you just have the odd undersized projectile well, who really cares. If you bought Norc and expected accuracy your a fool. Some barrels like it though so you may get lucky with it. It's inconsistent at best.
 
Dietz said:
Yeah, the quality and consistency of american ammo lately makes Norinco look like high quality ammo.
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Let's not get carried away now. Norc ammo will never be high quality by any stretch of the imagination. It goes bang most of the time and that's about all that can be said. There have been a lot of threads started with people having problems with Norc 5.56.
 
Well, I shot this years BC Service Rifle Provincials in Chilliwack with my Swiss and Norinco ammo. Came in around the middle of the pack. I have yet to experience any blown or pierced primers, split cases, undersized bullets, or any other deficiencies. I was worse off using AE Tactical stuff. It was very inconsistent for me. I'm trying to perfect my 77gr SMK load for next year, and will continue to practice the falling plates match with the Norinco stuff. Hopefully I don't wear out my barrel, or blow apart my bolt.
 
Tenguns said:
Well, I shot this years BC Service Rifle Provincials in Chilliwack with my Swiss and Norinco ammo. Came in around the middle of the pack. I have yet to experience any blown or pierced primers, split cases, undersized bullets, or any other deficiencies. I was worse off using AE Tactical stuff. It was very inconsistent for me. I'm trying to perfect my 77gr SMK load for next year, and will continue to practice the falling plates match with the Norinco stuff. Hopefully I don't wear out my barrel, or blow apart my bolt.
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Sounds like you've been lucky and gotten some of the good batches. Problem is that it's inconsistent and a lot of people are not having your luck. This is a reoccurring thread in this section, seems like every week there is someone new starting a thread stating problems and then many more jump in to share their negative experience. Luckily there are a few like you that have had good experiences or everyone would soon stop buying it.
Doesn't matter much any way since I hear they aren't bringing any more in so what you have and what is on the shop floor now is the last of it.
 
ever think the reason we hear about it with Norc ammo is cause more of it is out there?


On a side note I have been getting a .09 splits often as of late and for the record I run Hornady 75gr match ammo in all comps I shoot
 
Jamie said:
ever think the reason we hear about it with Norc ammo is cause more of it is out there?
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No.
I've never had multiple split cases with any other ammo. I've never had a blown shoulder until I bought a case of Norinco.
As the brass is not worth reloading to me, there are no savings to be had. I'm glad it's working for you.
 
norc cant be any worse then the case of american eagle 55gr i have left remaining. Every box has at least 2 misfires, usually 3 or 4. All have strong primer strikes so it aint the rifle, savage. Id prefer the norc just on basis that it would have cost me less.
 
Small bullets are not good for a rifles bore. Think about all that hot gas whistling through the "windage" and eroding the bore and rifling.

Before people start with the WTF? has he been drinking?
Windage is actually a historical term used to describe the difference/gap between cannon barrel and an undersized (to keep pressures safe and ease loading) projectile.
 
windage vs what normally happens, hot gas going though the rifling while a bullet is being pushed in front of it at 3000fps
 
lone-wolf said:
windage vs what normally happens, hot gas going though the rifling while a bullet is being pushed in front of it at 3000fps
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How fast does the gas go past an undersized bullet at >50 000PSI?

If blanks can burn out a rifles throat as fast or faster than live.......... one could think that the flow of hot gas is more destructive than pressure.
 
I have been shooting lots of it and have only noticed one split case. Would shoot less of it but cant find much in the way of decent projectiles for reloading.
 
cr5 said:
More importantly, anyone running Norc needs to check if a magnet will stick to the bullet (the projectile, not the case) if it does dispose of all of it. If the magnet sticks you have bi-metal jacketed bullets which is a steel/copper alloy which will wear out your barrel. if you run bi-metal jacketed bullets you can expect less that 1/3 the barrel life from your rifle.
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Nonsense, other than the one post from Luckygunner, is there any evidence of what you speak? Also, Norc does not produce bimetal 223.
 
CanAm said:
Nonsense, other than the one post from Luckygunner, is there any evidence of what you speak? Also, Norc does not produce bimetal 223.
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Well I think Luckygunner's article was pretty strong evidence that bi-metal jacketed bullets do in fact wear out barrels way faster than copper jacketed ones. It's not rocket science, copper vs steel.

It is, however, of no concern for the vast majority of AR shooters in Canada.

As for the Norinco keyholing, I haven't had a problem with the CJ93 crates I got from you.
 
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