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Mags and Accuracy


D.R.D.

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I understand and have seen how various brand / quality magazines will affect consistent feeding and reliability.  But, I've read many people stating that they see changes in accuracy with different mags.  How is this possible?  What would account for that, technically speaking? 

 

DRD

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If you have a magazine that affects your accuracy, immediately sell give away your rifle... you have lost your privilege to shoot that firearm.

Hah, that's a good one!

You can't believe everything you read and see on the interwebs. People will write anything for attention. Always consider the source, it's not like this was Larry Vickers saying this.....

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 I'm just saying what if.   What if the magazine was scratching the bullets as they left, or held the round at a slightly odd angle causing the rounds to randomly hit the barrel extension weird.  Hey it's possible, I'm just saying, never say never.

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I'm just saying what if.   What if the magazine was scratching the bullets as they left, or held the round at a slightly odd angle causing the rounds to randomly hit the barrel extension weird.  Hey it's possible, I'm just saying, never say never.

Your feed ramps scratch the bullet more than a mag will.

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 I'm just saying what if.   What if the magazine was scratching the bullets as they left, or held the round at a slightly odd angle causing the rounds to randomly hit the barrel extension weird.  Hey it's possible, I'm just saying, never say never.

 

Unpossible.

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I'm just saying what if. What if the magazine was scratching the bullets as they left, or held the round at a slightly odd angle causing the rounds to randomly hit the barrel extension weird. Hey it's possible, I'm just saying, never say never.

Let's say ALL that stuff happened, all at the same time, and the magazine was rusty, and the floor plate fell off and the spring shot out.... and anything else you could imagine to cause a horrible malfunction.... then the cartridge gets seated in the chamber, behind a locked bolt, at least a full inch away from the offending magazine, surrounded on all sides by tempered steel that has nothing whatsoever to do with the condition or make of the magazine. As the fire control group is activated, in a section of the lower receiver completely partitioned away from the magazine, it strikes the end of the firing pin which then rockets through the bolt carrier assembly, and impacts dead center with the primer, all the while never making contact with the catastrophic magazine. As the primer pops, it ignites the powder, creating an expansion of gas that travels the path of least resistance. The bullet is quickly uprooted from the casing and sent hurtling through the barrel (also not in contact with the ill fated magazine). As the bullet passes the gas block, the expanding gasses begin the auto loading function of the firearm....

I got side tracked.... at what point did you say the magazine affected the path, performance or trajectory of the bullet to cause it to err?

You could make a magazine out of a "Mike and Ikes" box and some spare parts out of the garage. If you get it to load a round, your rifle will be just as accurate as if you used a Magpul/KAC/DPMS/??? Magazine.

This is untrue with Armalite AR10 mags. Eugene Stoner patented a feature that makes the AR10 kill deader than other rifles. I heard a sniper actually killed his target three times with one shot. Now that's REALLY DEAD! It's true because I read it on the Internet.

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If you have a magazine that affects your accuracy, immediately sell give away your rifle... you have lost your privilege to shoot that firearm.

 

<lmao>  <laughs>  <lmao>  <laughs>  :))  <thumbsup>

 

 

(been working since 6am, then kicked out of the house by the wife to take the kids to a movie while she had girls' nite with other moms, come back and see this - I just lost it).

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Mags will cause feeding problems. Not accuracy problems.

 

For example:

I bought some brand new Armalite 10 round mags to go visit a certain gimpy friend of mine early last month. Being new and never run (the mags....not his knee), they caused a couple fail-to-feed issues. I've never had a problem with any of my 20 rounders. Even new ones (yeah....I've got.....a few laying around) can be slapped into the magwell and they'll run. I guess mine just didn't like the new 10 rounders. No worry for me though. I'll never use the damn things again unless I go to another 10 round only state.

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Mags will cause feeding problems. Not accuracy problems.

 

For example:

I bought some brand new Armalite 10 round mags to go visit a certain gimpy friend of mine early last month. Being new and never run (the mags....not his knee), they caused a couple fail-to-feed issues. I've never had a problem with any of my 20 rounders. Even new ones (yeah....I've got.....a few laying around) can be slapped into the magwell and they'll run. I guess mine just didn't like the new 10 rounders. No worry for me though. I'll never use the damn things again unless I go to another 10 round only state.

 

You went to Zed's?  <laughs>

Edited by shibiwan
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I think the only way a magazine would effect accuracy would be from a purely psychological perspective. If you have a mag that doesn't feed reliably then you might be thinking about that while you are shooting and it could effect your shot.

On the other hand if your running a mag that has never failed you then you are shooting with confidence.

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   I've worked on a lot of things in my life and have found, never say never.  Also, I'm anything but a gunsmith of any kind.

 It was never the point that the magazine directly effected accuracy. It was more about the follower or mag lips not correctly holding the cartridge and the cartridge getting damaged on the way in the chamber.

   I've personally seen a Armalite that will ding some casings and scratch nearly every bullet it cycles. I don't mean faint scratches either.  It is possible that dinged cases may have slightly different pressures or seating issues. The scratching may with the spin cause a slight inconsistent yaw .

  We're not talking missing a deer at ten feet, but may be enough to keep you from a sub 1 MOA groups at range, vs say 3/4 MOA.

   Go ahead and flame away!

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  Ok , pokey , just how did you see the scratches on the bullet or case ? You can't see any of that when its chambered & once the primer is set off & the round fired , the bullet is gone , unless your catching it in some way, after the bullet has exited the barrel & what ever you are using to catch the bullet hasn't caused any bullet change . That would be the only way you could inspect the bullet after it has been fired .

  Or, you feeding a round in the chamber & then extracting this fully loaded round & seeing , said damage . I can tell you what made those marks , if this is the way you are seeing them  & that's the locking lugs on the barrel extension. The extractor , with ejector pressure , will pull the complete cartridge toward the ejection port , which scrapes the cartridge across the locking lugs.

 

  Normally when the feed lips of a Magazine are not correctly lined , you will have FTF issues.

 

  Unless I'm missing something or not understanding what you mean . <dontknow>

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I noticed 180 grain soft points get deformed in my AR-10. They get flattened out from banging the front of the mag during recoil and I have ejected live rounds and seen gouges out of the soft points. Same mag with SMK's or FMJ's and I don't notice a thing........ nothing to do with the mags. If you have mags that are causing accuracy issues send them to me for disposal, I'll make sure they don't cause any more issues. <laughs>

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