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Alert - Defective 357 Ammo

This is a discussion on Alert - Defective 357 Ammo within the Ammo Dump forums, part of the Firearm Forum category; Just a warning. I got a bad box of 357 magnum ammo from CheaperthanDirt. Out of the 50 shells, two split the length of the ...


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Old December 13th, 2012, 09:54 PM   #1
 
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Alert - Defective 357 Ammo

Just a warning. I got a bad box of 357 magnum ammo from CheaperthanDirt. Out of the 50 shells, two split the length of the case and three others bellowed out like mushrooms in my cylinder. I contacted RUAG Ammotec, the manufacturer, three times in the last week with no reply. They are RWS .357 Magnum Sport Line 158gr FMJ FP Match Grade Bullets. I wish I could post a picture of the shells but the website will not let me.

The defective shells were shot from a Ruger 357 Magnum with a 6 inch barrel. The shells got stuck in the revolver cylinder which required dis-assembly of the gun to free the jammed shells.

Be careful! The lot number was 11 09 which I suspect has bad brass.




Last edited by saumur; December 13th, 2012 at 10:00 PM.
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Old December 14th, 2012, 03:37 AM   #2
 
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That ain't good!!!!
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Old December 14th, 2012, 03:38 PM   #3
 
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Thanks for the heads up!
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Old December 14th, 2012, 05:18 PM   #4
 
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Pictures please
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Old December 14th, 2012, 07:13 PM   #5
 
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Pictures please
Yep, pics. do help.
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Old December 14th, 2012, 07:25 PM   #6
 
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Originally Posted by saumur View Post
I wish I could post a picture of the shells but the website will not let me.
Huh? You mean Rugerforums.net won't let you or some other website? If you first post your photos to photobucket.com, you should have no problems posting them here.

I can help you if you have problems.
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Old December 14th, 2012, 08:18 PM   #7
 
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Picture of Ammo

I tried the photbucket thing. Maybe it will work.



Last edited by Iowegan; August 21st, 2013 at 06:23 PM. Reason: edit for picture
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Old December 15th, 2012, 05:25 AM   #8
 
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Splits happen on older brass but not new. It's typically not a very strong round and should be Matched ammo to boot.

Can you take a picture of the headstamp? So this was a GP100.
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Old December 15th, 2012, 11:28 AM   #9
 
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Here's his photo:



That is either defective brasss, or a severe overcharge of powder. Take a picture of the case heads so we can see the primers.

Either way, that ammo is obviously not safe to fire. See if Cheaperthandirt will refund you your money if you send the rest back, or at least replace it with some other ammo of similar cost.
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Old December 15th, 2012, 03:08 PM   #10
 
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Headstamp

The Headstamp reads RWS 357 Magnum. The spent primer appears quite normal. There was no blacking around the primer and the hammer mark struck in the middle. I see absolutely nothing wrong with that part.

Last edited by saumur; December 15th, 2012 at 08:35 PM.
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Old July 29th, 2013, 03:55 PM   #11
 
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Thumbs down

I too am having problems with this ammo in my Ruger GP100 (357 Mag, 4" barrel). My problem is that when I have these rounds loaded into the cylinder, I get a lot of resistance when trying to push the cylinder back into place. I can get it back into place with great difficulty, but the weapon will not fire. The ejector rod will not eject the rounds either!

When I try to fire the gun in double-action mode, the hammer will only go halfway back and no more (cylinder will not turn on it's own either). When I try in single-action mode, again I can only pull the hammer halfway back.

Rounds of .38 Special ammo will fire with absolutely no problems whatsoever!

This leads me to believe that the RWS (Ruag) brass shells are out of specs .... Either the casings are too expanded that they will not fully seat in the cylinder. Or, the casings were not trimmed to spec, causing the casing to be slightly too long. Either of these conditions could cause the cylinder to bind.

I have not contacted RWS at this time, but will let you know what transpires.
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Old August 3rd, 2013, 05:16 PM   #12
 
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They could also have primers that are not fully seated. In any event, it sounds like an ammo problem. I assume you have had no problems with other brands of ammunition? That is one of the many reasons I make my own. (reloads). I would be very upset if I had factory centerfire ammo split the cases like that. I count on those empties to reload since factory unprimed brass is almost impossible to fine these days. (When factories can charge over $1 a round for loaded ammo, why sell empty brass?) It sounds like I can scratch RWS off my list of ammo to buy.
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Old August 3rd, 2013, 06:15 PM   #13
 
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WOW! RWS is supposed to be a premium brand too.

Were they on a huge discount?

Can you mic the case length and dia for us?
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Old August 18th, 2013, 08:40 AM   #14
 
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Measurements

UPDATE - I have purchased a box of Winchester brand 357 ammo and they seem to fit fine in the cylinder ... Cylinder closes without any problems either. I have not been able to get out to the range to test fire the Winchester ammo in my GP100.

I have made measurements of a random selection of both the RWS (R) and Winchester (W) rounds, and have found the following (measurements in inches):

Outside diameter: R = .375 W = .375 (measured at base, mid case and tip)
Overall length: R = 1.576 W = 1.578
Case length: R = 1.281 W = 1.279
Case base diameter: R = .434 W = .434
Case base thickness: R = .050 W = .050

Not sure how strict the Ruger GP100 tolerances are, but the extra .002 of the case length of the RWS ammo versus the Winchester ammo may be the culprit in my case. Primers are all completely seated in both brands.

Last edited by SkySgt; August 18th, 2013 at 08:43 AM.
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Old August 18th, 2013, 09:31 AM   #15
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Originally Posted by SkySgt View Post
UPDATE - I have purchased a box of Winchester brand 357 ammo and they seem to fit fine in the cylinder ... Cylinder closes without any problems either. I have not been able to get out to the range to test fire the Winchester ammo in my GP100.

I have made measurements of a random selection of both the RWS (R) and Winchester (W) rounds, and have found the following (measurements in inches):

Outside diameter: R = .375 W = .375 (measured at base, mid case and tip)
Overall length: R = 1.576 W = 1.578
Case length: R = 1.281 W = 1.279
Case base diameter: R = .434 W = .434
Case base thickness: R = .050 W = .050

Not sure how strict the Ruger GP100 tolerances are, but the extra .002 of the case length of the RWS ammo versus the Winchester ammo may be the culprit in my case. Primers are all completely seated in both brands.
Thanks for the update.
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