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View Full Version : Unsafe Military Surplus 7.62 X 54R Pic included



king2517
06-01-2012, 03:24 PM
Make sure you inspect your Military Surplus Ammo, big problems almost catastrophic with 7.62 X 54R yesterday The Photo shows a vertical crack down the case and horizontal crack next to the RIM http://i49.tinypic.com/21bu5ap.jpg

tdbrown1969
06-01-2012, 03:27 PM
What kind of ammo? Have a picture of the head stamp?

king2517
06-01-2012, 03:37 PM
What kind of ammo? Have a picture of the head stamp?
http://i49.tinypic.com/2yyxvty.jpg
I beleave it was Czech

king2517
06-01-2012, 03:41 PM
I think there the powder was water logged, I started to shake some of the other ammo to see if I could hear the powder move. nope powder did not make any noise

tdbrown1969
06-01-2012, 11:13 PM
Looks to be Russian

http://7.62x54r.net/MosinID/A1371.jpg

jm0502
06-02-2012, 01:43 AM
Very common with older surplus. I have a lot of 8mm Mauser ammo do this a few years ago. Same with 7.62x25

jm0502
06-02-2012, 01:46 AM
http://thefiringline.com/forums/showthread.php?t=411995

K.Unger
06-03-2012, 07:28 PM
Very common with older surplus. I have a lot of 8mm Mauser ammo do this a few years ago. Same with 7.62x25


I had a lot of 1940's era surplus in 8mm do the same, it's still being sold in bandoleer local. be careful, check for any cracks/ oal before shooting.

Fuel Fire Desire
06-03-2012, 07:46 PM
Reminds me of the first lot of 7.62x25 I bought. Almost every round did this.

http://i129.photobucket.com/albums/p205/fuel_fire_desirels1/firearms/SANY0521-2.jpg


Did not ever see a malfunction or expulsion of gas with them though.

autosurgeon
06-03-2012, 10:49 PM
I have had many diff headstamps do this.... and none of the guns are any the worse for the wear.

Howard000003
06-04-2012, 12:06 AM
I have had many diff headstamps do this.... and none of the guns are any the worse for the wear.

Its my understanding that a case that splits ~1/2 below the shoulder (for rifle) is in the danger zone as far as safety is concerned. Any thing the shoulder and above is generally not a concern. I've had plenty of 1940's 8mm ammo split from the neck up.

A shell that splits down to the rim runs the risk of over pressure in the chamber causing a catastrophic failure - the gas does not vent down the barrel but rather has to find an exit from the chamber. Depending on the the design of the rifle, one could be looking at a blown chamber. Not something I'd want considering my face is next to the chamber.

EcksFactor
06-04-2012, 01:10 PM
Where did you get this ammo?

king2517
06-04-2012, 01:12 PM
Where did you get this ammo?
Bullets and Brood Heads Kimball twp

10x25mm
06-05-2012, 01:56 PM
In brass cartridge cases, this type of cracking is referred to as 'season cracking'. Season cracking in brass is due to exposure to ammonia, a decay product of smokeless powder, or mercury, a constituent of some corrosive priming mixes.

When ammunition is stored for extended periods of time at higher temperatures, above 150 F, this kind of damage results. The U.S. Army had to destroy almost all of their WW I ammunition production in the early 1920's due to this phenomenon. The gunpowder they used was not stabilized chemically and quickly decomposed to ammonia. Most WW II ammunition loaded with fulminate of mercury priming mixes (German, Italian, Finnish) is now experiencing season cracking just from age alone.

In steel cartridge cases, this kind of cracking is due to nitrogen aging in 'unkilled' steels (those without aluminum or silicon additions). The steel looses its ductility over a period of time (20 - 30 years) and the case splits during firing. Nitrogen aging is often referred to in the stamping industry as 'orange peel'. Potassium perchlorate priming compositions used by the Warsaw Pact countries make this problem worse over time.

Stop using ammunition which splits like this immediately. The hot gasses released will damage the chamber of your gun even if it doesn't injure you.

Veteran
06-05-2012, 05:05 PM
This is exactly why I spend more for modern Winchester ammo.
With most surplus ammo you have to clean your weapon thoroughly and quickly because they used sodium to preserve the primer for long storage, It will rust your weapon in no time. I have a 91-30 sniper rifle and don't want to screw it up. Also don't want anything like that to happen.

shifty_85
06-06-2012, 01:48 PM
ive had this happen as well on my 54R rounds. some of them have green and after i fire it that is were the crack is. never had anythis bad thoe.

lil_freak_66
06-10-2012, 08:27 AM
ive had a bunch of 7.62x54R split(maybe as high as 5% of them depending on the batch?) between a few different mosins...they werent as severe as the ones the OP posted, but out of the dozens ive had split, the mosins are still in perfectly fine firing condition....then again mosins are WAY over built compared to most comparable sized civilian rifles.

shifty_85
06-11-2012, 01:47 PM
ya these surplus rounds are only loaded to 30-60% of what a mosin nagant can with stand so cracking or not they are fine.

10x25mm
06-11-2012, 03:00 PM
The real problem with these splits is gas cutting of the rifle's chamber walls. You won't see any problems with a few gas cuts, but as more and more gas cuts occur, your extraction will be impaired.

shifty_85
06-12-2012, 02:06 AM
The real problem with these splits is gas cutting of the rifle's chamber walls. You won't see any problems with a few gas cuts, but as more and more gas cuts occur, your extraction will be impaired.

then you have a mosin project or go buy a new one for 89 bucks.

ive only had 1 batch of mosin nagant rounds do this to me. but these rounds are 40-50 years old come on now sealed or not they are OLD

i have some eyption rounds that the bullets turn on them and some of them dont go bang. some are hang fires i have videos you can see the bolt drop then 2 seconds later the round goes off.

repsem
07-19-2012, 06:00 PM
Some of that 'surplus' stuff can be pretty shady.