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17 HMR SEMI AUTO Recall
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3_tens View Drop Down
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Posts: 2814 		Post Options Post Options   Quote 3_tens Quote  Post ReplyReply Direct Link To This Post Topic: 17 HMR SEMI AUTO Recall
    Posted: November/23/2009 at 08:21
The ammunition manufactures tell you not to use 17 HMR ammunition in any semi-automatic firearm. This warning should be adequate for responsible shooters. Shooting the Volquartsen would be totaly at your own risk. To my knowledge nobody has died from any of the failures.
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Posts: 1869 		Post Options Post Options   Quote Average Joe Quote  Post ReplyReply Direct Link To This Post Posted: November/22/2009 at 15:31
No recall on Volquartsen so far.

Edited by Average Joe - November/22/2009 at 15:31
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Posts: 2814 		Post Options Post Options   Quote 3_tens Quote  Post ReplyReply Direct Link To This Post Posted: November/21/2009 at 22:00

Make your own decision but this the letter from the Ammunition Manufacturers.

August 20, 2009

Dear Customer:

Do not use 17 HMR ammunition in semi-automatic firearms. Use of 17 HMR ammunition in semi-automatic firearms may result in serious personal injury or property damage.

17 HMR ammunition is manufactured in accordance with standards issued by the Sporting Arms and Ammunition Manufactures’ Institute (SAAMI). Subsequent to the design and introduction of 17 HMR ammunition to the market, 17 HMR semi-automatic firearms were introduced by various firearm manufacturers. Those firearms have proven to be incompatible with 17 HMR ammunition. 17 HMR ammunition is suitable for use in quality firearms in good condition that are not semi-automatic.

Accordingly, do not use 17 HMR ammunition in semi-automatic firearms. Only use 17 HMR in modern firearms in good condition marked for 17 HMR cartridges. Always use eye and ear protection. Always read all product labeling carefully for instructions on safe use.

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Posts: 320 		Post Options Post Options   Quote Sparky Quote  Post ReplyReply Direct Link To This Post Posted: November/21/2009 at 21:01
A buddy of mine has a Volquartsen 17HMR with the snake fluted barrel and has fired thousands of rounds through it. It is about three years old. Is he living on barrowed time? Or should I just make sure I am on the other side of the ejection port?
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Posts: 672 		Post Options Post Options   Quote SamC Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 21:32
Good information, great post, thanks 3_tens!
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Posts: 4591 		Post Options Post Options   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 17:06
Seems like I read on the www.eabco.com website that case ruptures are quit common with the HMR and Mach 2 with the semi autos.  They even went on to say a left handed person is not to shoot one because of blow backs and shrapnel coming back from the action. 

hmm I found it now, maybe it was just the HM2s.  http://www.eabco.com/ruger1022warnings.htm


Edited by supertool73 - August/24/2009 at 17:07
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Posts: 7696 		Post Options Post Options   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 16:41
Originally posted by 3_tens

Found some post that suggest it is in the thin walls of the case is bulging somewhere in the ejection sequence.
 
 
That is due to the aforementioned pressure problems with this round in blowback actions.  This situation doesn't occur with locked breech actions such as a bolt action.  If the bolt starts to open before the bullet exits the barrel, the case begins moving rearward with the bolt, where the pressure is no longer contained by the chamber and the result is the unsupported case bulges or bursts.
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Posts: 2553 		Post Options Post Options   Quote Tip69 Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 13:07
Interesting........... Very interesting!
take em!
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Posts: 2814 		Post Options Post Options   Quote 3_tens Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 13:00
Found some post that suggest it is in the thin walls of the case is bulging somewhere in the ejection sequence. Excel Industries and Magnum Research have removed there .17 hmr rifles from the market. Volquartsen still has them on the web site. It was only last week that Remington pulled their rifles, so Volquartsen may just be a little slow. Magnum pulled there rifles back in July. The Excel still has the .22 mag Semi auto and it is a sharp looking rifle.


Edited by 3_tens - August/24/2009 at 13:01
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Posts: 7696 		Post Options Post Options   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: August/24/2009 at 10:15
Most likely it is a timing issue with blowback style semi-autos.  With a blowback style action, you don't have locking lugs to keep the breech locked until pressure bleeds off.  The mass of the bolt provides just enough inertial resistance that the bullet has time to exit the barrel and peak pressure bleeds off before the bolt begins to travel rearward.  This works fine for a .22LR, but the .17HMR creates way more pressure.  Early on, when Volquartsen was experimenting with the .17 HMR in their 10/22 style rifles, they were having problems with the .17 HMR cases rupturing because the bolt started opening before pressure bled off.  So, they made the bolts for the .17HMR out of tungsten to increase its mass, which also necessitates a heavier recoil spring.  There have been many reports of .17HMR case ruptures in early blowback semiautos, but I thought the problem had been fixed with the heavier bolts and recoil springs.  Perhaps not entirely.  Basically, it appears the .17 HMR creates borderline too much pressure for a blowback style action.
Ted

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Posts: 7400 		Post Options Post Options   Quote Urimaginaryfrnd Quote  Post ReplyReply Direct Link To This Post Posted: August/23/2009 at 23:28
I'm thinking that it is an issue with the bolt comming back forward stong enoug to detonate the rimfire if the front of the necked down case catches as the bolt closes.  It has to come back further than a 22 which means a heavier more compressed spring zinging that bolt closed.   There are not a whole lot of 22 mags in semi auto either.
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Posts: 11923 		Post Options Post Options   Quote cyborg Quote  Post ReplyReply Direct Link To This Post Posted: August/23/2009 at 23:08
Shocked OOOPSIE!!!!!! What gives I wonder? The HMR rds too hot for a semi?
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