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  #11  
Old 06-02-2010, 01:02 AM
battlerattlem1 battlerattlem1 is offline
 
Join Date: Mar 2010
Location: Wheat Ridge, CO
Posts: 56
Default Tw non corrosive m2 ball

About 2 years ago, I had a chance purchase 2000 rounds of M2 ball ammo with a TW 51 headstamp.
It was represented as corrosive primed by the seller, who was a local "expert". I got on this forum and discovered that Twin Cities was one of the first if not the first govt. ammo producer to go to non corrosive primers, December of 1950. Needless to say, I ran right back and let the seller try to convince me that I didn't want that old corrosive ammo, that he was selling for about one half the normal cost of M2 ball. I still have about 500 rounds and experimenting has shown that it groups about one half the size of the groups with HXP. At least with my ratty old correct grade HRA.
And some people say these forums are not helpful.
Bull puckey.

Last edited by battlerattlem1; 06-02-2010 at 01:07 AM. Reason: caps problems.my caps lock was on.
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  #12  
Old 02-14-2011, 07:27 PM
.22shooter .22shooter is offline
 
Join Date: Mar 2010
Location: VA
Posts: 2,196
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So if a can of ammo has a lot number higher than the one listed for that manufacturer it is non-corrosive?

Example: SL 9420 non corrosive on the chart. Is SL 9779 non corrosive then?
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  #13  
Old 02-14-2011, 11:30 PM
Craftsman Craftsman is offline
 
Join Date: Oct 2009
Location: South Florida
Posts: 7,018
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Quote:
Originally Posted by bsrman36 View Post
So if a can of ammo has a lot number higher than the one listed for that manufacturer it is non-corrosive?

Example: SL 9420 non corrosive on the chart. Is SL 9779 non corrosive then?
Yes.
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  #14  
Old 07-17-2011, 11:12 AM
saltydog452 saltydog452 is offline
 
Join Date: Jul 2011
Posts: 127
Default

Cans can be swaped about, headstamps remain.

Rookie asking, if I read it right, any domestic M2 '06 ammo with a post 1945 headstamp is non-corrossive?

What about foreign headstamps? Buyer beware?

EDIT: Just read the brief refering to Korean and Canadian mfgr, how about Greek, or...?

Thanks,

salty

Last edited by saltydog452; 07-17-2011 at 11:30 AM.
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  #15  
Old 07-21-2011, 10:29 AM
dfancysr dfancysr is offline
 
Join Date: Oct 2009
Location: Lunenburg, Mass
Posts: 641
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Domestic M2 ammo with headstamps after 1953 can be assumed to be non corrosive. the crossover dates are in the chart on page 1.
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  #16  
Old 07-26-2011, 08:40 PM
gamblelane gamblelane is offline
 
Join Date: Dec 2009
Location: California
Posts: 140
Default FN Herstal 1955

I was just given 300 rds of 30-06 in boxes marked "cartuchos" but they are made 1955 in Belgium. Are they corrosive primed?
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  #17  
Old 07-28-2011, 10:46 AM
glassmountains glassmountains is offline
 
Join Date: Jun 2010
Location: The Hill Country of Texas, Bergheim
Posts: 1,422
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It's a safe bet that they are. The Europeans did not switch to non-corrosive primers until the late 50's early 60's.
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  #18  
Old 08-04-2011, 09:16 PM
GunZila GunZila is offline
 
Join Date: Jan 2011
Location: NC
Posts: 93
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thanks for sharing !
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  #19  
Old 10-14-2011, 09:41 AM
Parker1942 Parker1942 is offline
 
Join Date: Sep 2011
Location: Louisville, KY
Posts: 216
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Is there a sure fire (no pun intended) way to test whether ammo is corrosive or non-corrosive? I have been shooting KA-73 through a Garand and assumed it was non-corrosive. Thanks
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  #20  
Old 12-02-2011, 05:45 AM
LeadSpitter LeadSpitter is offline
 
Join Date: Oct 2009
Location: Northern, IL.
Posts: 227
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Quote:
Originally Posted by Moops View Post
I liked this small article and chart about corrosive ammo.
http://www.ashlandlakegunclub.org/do...rimerRedux.pdf


Sadly they didn't cover or list the ammo made at or that came from NAMMO.
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