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Tz - 80

This is a discussion on Tz - 80 within the Ammunition forums, part of the M14 M1A Forum category; There have been many reports about TZ-80 on different forums....the consensus seems to be that its caused by defective brass, not overloads. I wouldn't shoot ...


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Old November 9th, 2009, 06:34 AM   #31
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There have been many reports about TZ-80 on different forums....the consensus seems to be that its caused by defective brass, not overloads. I wouldn't shoot it in a rifle I care about......which would be all of 'em!

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Old November 12th, 2009, 08:41 PM   #32
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Hey guys, I just saw this thread and I bought a 500 round can about 10-12 years ago and have about 240 rounds left. I was wondering if the bad rounds were from the bulk boxed stuff? I have shot half of them in a NM M1A with no problems what so ever. Just a thought mine came in OEM boxs not loose. I also have reloaded every round and shot some of them with no issues.

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Old November 13th, 2009, 06:22 AM   #33
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Hey guys, I just saw this thread and I bought a 500 round can about 10-12 years ago and have about 240 rounds left. I was wondering if the bad rounds were from the bulk boxed stuff? I have shot half of them in a NM M1A with no problems what so ever. Just a thought mine came in OEM boxs not loose. I also have reloaded every round and shot some of them with no issues.
Do you happen to know what the "Lot" numbers are on your can? (or any other marks)

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Old November 16th, 2009, 01:06 PM   #34
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Yes I do, can says 500 cartridges cal 7.62mm ball lot:11-80. Light tan boxes say the exact same thing. If I remember right it was supposed to be match grade bullet, but nothing on the box or can says so. This is some of the most accurate surplus ammo I have shot through my gun. Better than GGG, Calvin and South Afican by alot.

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Old November 20th, 2009, 03:41 AM   #35
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Greetings, I'm an FNG to the forum. I recently picked up a sealed 500 rd can of TZ-80 lot 7-80, 20 round OEM boxes. It looks pristine. I've never shot Israeli ammo before so I did a little google-fu and came across the site. Glad I checked here before I sent any downrange. At least I'm not out that much $, it came as part of a large ammo consignment that included 2000 rds of Q3130. I may still test fire a few rounds through my IDF 7.62 mauser, locked down in the bench with a remote trigger. The mauser action seems damn near Nuke proof. Any thoughts?

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Old November 20th, 2009, 05:30 AM   #36
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Dont think you will have much trouble with that mauser, like I said I have shot about 250 rounds with no trouble at all, knock on wood.

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Old November 24th, 2009, 07:18 AM   #37
 
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I have have been shooting some from lot# 9-80. It came in 20rd boxes in a 500rd can. I have not had any problems, but I have thought it was kind'a hot compared to other m80. I first used it in my M1a and stopped because it felt like the rifle was recoiling much harder than with other brands. Then I tried it in an FAL and it handles it no problem. Shoots pretty good in the FAL to.

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Old November 25th, 2009, 12:19 PM   #38
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I have have been shooting some from lot# 9-80...I have not had any problems, but I have thought it was kind'a hot compared to other m80. I first used it in my M1a and stopped because it felt like the rifle was recoiling much harder than with other brands.....
I have 1k rounds from lot # 5-80 and shot 100 awhile ago. I too thought it was pretty hot. Recoil was pretty hard in comparison to the Federal or Remington stuff of similar weight.

I had no problems with the ruptured cases or primers but don't want to punish my queen.

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Old December 18th, 2009, 06:11 PM   #39
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I just pulled down about 50 rounds of TZ-80 and weighed the charges and found it between 46-48 grains, kinda hot. I transfered the bullets and powder to some different brass and backed it off to 43 grains and it shot pretty good. I weighed all 50 bullets and the weight was all over the place between 142-145 grains. I had shot some of this ammo before I found out it had problems and I have several cases showing signs of case head seperation. It looks like the brass is very thin at the base.

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Old December 18th, 2009, 06:39 PM   #40
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TZ,TZZ this stuff rings a bell. Wasn't a bunch of this bulk stuff brought in and tumbled to clean up it's grungy exterrior? The tumbling broke down the powder into smaller pieces causing it to explode instead of burn. Stuff was hot to begin with. I've read to many bad reports about it to chance putting it in my gun. Glad you didn't get hurt.

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Old December 20th, 2009, 06:03 PM   #41
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well that stinks. i just bought a 50 cal can full of this. anyone have any info on the 3-80 lot? it has red sealant around the primers.

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Old December 20th, 2009, 07:08 PM   #42
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I bought 6 cans of this junk years ago, it was my SHTF stash until I shot some of it. Was really accurate but averaging around 3-4 split cases per 20 rounds. What you see in the bucket are somewhere between 1500-2000 pull down primed cases. The bullets and powder make good reloads, I do back off the charge about 2 grains.



Lesson learned always test surplus ammo before you count on it. I also have some IVI SS109 that was loaded in mg belts that pops primers right and left.
m.

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Old December 26th, 2009, 07:23 AM   #43
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Hey mack was your ammo in boxes or loose packed?

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Old January 2nd, 2010, 11:37 PM   #44
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FNG here also.

I've got several cases of the TZ 80. I've shot a couple hundred rounds with no problems in my M1A. Lot number is 2-80. I alslo have some 5-80 and 4-80 that I haven't shot yet. This ammo was bought in sealed ammo cans 10-12 years ago. Ammo is new in individual 20 round boxes. Ammo cans have never been opened, still with lead seal with styrofoam filler on top of boxes of ammo. Mine is NOT tumbled brass. None of my brass shows any signs of stress after shooting. No splitting, primer pockets tight. I will mic some case heads tommorow. I will pull some apart tommorow also to weigh powder charges.

I am extremely interested in hearing of more accurate ammo failures. What is the lot number, was the ammo tumbled, etc...

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Old January 3rd, 2010, 12:17 AM   #45
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Went and pulled some bullets to weigh powder.

Round ball powder, very spherical. Anywhere from 44.0-44.6 grains of powder depending on the lot. Bullets all showed a black sealant. Bullet weight about 144 grains each. I also mic'd a few fired cases. Identical head expansion the FC brass in the bucket from the same rifle. Fired cases look really good. I would really like more info on whether the bad ammo lot numbers and initial condition (original boxes, tumbled, etc...)

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