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Anyone know this Head Stamp


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#1 LarryP

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Posted 21 August 2009 - 01:49 PM

I have been finding quantities of 9mm brass on our public Range and havent a clue of its brand.
The head stamp reads: HP (+) L7 A 1 91

The plus sign is in a circle and the “A” is questionable it could be a symbol like an A without - “/\”. Also, there is a RED coating around the primer. The weight of the case is a little less then Winchester brass.

I cleaned a dozen and loaded them. They’re tight. All primers went in okay, when I case sized them in my Loan Wolf Barrel not one came out when I flipped it. No problem in my stock Glock barrel.

I Anyone recognize this Head Stamp?

Thanks,

LarryP
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Mesa, AZ

#2 Dale Rader

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Posted 21 August 2009 - 01:56 PM

Here is a good place to start. It may have the information you need.

http://www.cartridge...dstampcodes.htm


Dale

#3 Wayne Dobbs

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Posted 21 August 2009 - 02:11 PM

The cross in a circle means the ammo is loaded to NATO specifications. The cases marked "L7A1" are most likely Hirtenberger brand and that's some hot loaded 9 x 19 ammo.

#4 LarryP

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Posted 23 August 2009 - 04:55 PM

Here is a good place to start. It may have the information you need.

http://www.cartridge...dstampcodes.htm


Dale


Very interesting, Thank you Dale
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#5 LarryP

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Posted 23 August 2009 - 04:59 PM

The cross in a circle means the ammo is loaded to NATO specifications. The cases marked "L7A1" are most likely Hirtenberger brand and that's some hot loaded 9 x 19 ammo.


Thank you Wayne.

Hmmm...I think I'll save.
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#6 Loves2Shoot

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Posted 23 August 2009 - 06:49 PM

I have a bunch of it. It is nato 9mm and is hotter for sure. We use it for shooting through the Uzi.

The outside of the boxes read 50 rounds 9mm Ball L7A1 HP 20791

The inside reads SV3890 HP 90

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#7 joecichlid

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Posted 23 August 2009 - 10:48 PM

I have a bunch of it. It is nato 9mm and is hotter for sure. We use it for shooting through the Uzi.

The outside of the boxes read 50 rounds 9mm Ball L7A1 HP 20791

The inside reads SV3890 HP 90



Hummmm I wonder if the stuff would make major?

Joe W.

#8 JThompson

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Posted 23 August 2009 - 11:00 PM

I have a bunch of it. It is nato 9mm and is hotter for sure. We use it for shooting through the Uzi.

The outside of the boxes read 50 rounds 9mm Ball L7A1 HP 20791

The inside reads SV3890 HP 90



Hummmm I wonder if the stuff would make major?

Joe W.


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#9 JimmyZip

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Posted 24 August 2009 - 05:16 AM

Saw old Isreali and Czech sub gun ammo make major through a 6" barrel BHP back in the pendulum days. It can be done.
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#10 BLISH LOCK

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Posted 26 August 2009 - 08:16 PM

9MM L7A1 is +P+ high pressure ammo

most boxes of this ammo i have seen are marked " not for use in pistols"




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