AMNT head stamp 223 Rem

ADIDAS69 · December 10, 2024, 01:43 PM

Been running through bucket of range pick up shell casings. Has anyone run into an AMNT head stamp. The google says it should be RUAG AMMOTEC NON TOXIC. It has a single flash hole but does want to de-prime. Can’t tell if the flash hole is too small or off center. Has anyone had any experience with these?

jetinteriorguy · December 10, 2024, 05:29 PM

[QUOTE=ADIDAS69;6986279]Been running through bucket of range pick up shell casings. Has anyone run into an AMNT head stamp. The google says it should be RUAG AMMOTEC NON TOXIC. It has a single flash hole but does want to de-prime. Can’t tell if the flash hole is too small or off center. Has anyone had any experience with these?[
I misread the post making my answer not applicable.

**Unclenick** · December 10, 2024, 05:54 PM

Non-toxic primers have historically had larger flash holes than standard, but formulations change over time and maybe yours are small. For checking the flash hole size, the easiest thing is probably just to sacrifice one case by cutting the head off of it and checking fit with your die's decapping pin (or a spare, if your die uses replaceable ones).

I suspect, having seen it before, that it is more likely you have an unusually strong primer crimp. I've had some military cases in which the decapping pin formed the primer cup bottom into a cone before they let go, and at least one that broke, leaving the sides of the primer cup in the primer pockets. You could try a drop of penetrating oil on the primers with the case mouth down on a flat surface and letting it sit overnight to see if that helps.

ADIDAS69 · December 11, 2024, 03:56 PM

Fortunately it was only 30 casings out of 10 gallons. I’ve had the experience you’re talking about re deforming primers because they’re really stuck in. This feels like a hard stop similar to a Berdan case. So I put them in the smelting pile. I wil probably investigate the suggestion you make largely because my brain has a “completionist” gear that can’t leave a mystery alone.

Viper225 · December 12, 2024, 11:44 AM

Looks like you are sorting your brass. I would probably sort those 30 cases into the Scrap Brass Bucket. Problem solved

I am always amazed at the different head stamps you can find. I came up with a bunch of TW Military a while back. Someone must have had an old ammo can of it stashed that they decided to shoot up at the Range.

Bob R

ADIDAS69 · December 14, 2024, 09:19 PM

Well sorting as I resize and de-prime and only sorting for reloadable or not. These ten gallons will be just regular ball ammo. For my proper bolt guns I buy Nosler brass and it remains distinctly segregated from the rest, there were 200 berdan and these few weird one which cost me two de-priming pins. On the whole ten gallons of free brass it seems like a fair enough trade.

Paul B. · December 15, 2024, 04:26 PM

I never had much problem when decapping crimped primer until I worked wth a batch of military .223. Broke a couple of decapping pins so I invested in one of those Lee decapping tools you whack with a hammer. It knocked them out just fine and after removing the crimp ave beed trouble free brass. Before someone asks, "Why bother?" I'll add that is was a bit over 1,000 pieces of brass to decap.

Paul B.

jetinteriorguy · December 16, 2024, 12:17 PM

Squirrel Daddy replacement decapping pins for the Lee universal decapping die are a definite upgrade, or just don’t overtighten the collet on the pin in the die. The trick to making it so the pin doesn’t give way too easy is to make sure there isn’t the slightest bit of oil or lube of any kind on the pin or collet jaws. If you do this you don’t have to crank it down so tight to prevent it constantly slipping but it will slip when needed to protect the pin from bending or breaking.

December 10, 2024, 01:43 PM	#1
ADIDAS69 Senior Member Join Date: October 17, 2009 Location: Seattle Posts: 397	AMNT head stamp 223 Rem Been running through bucket of range pick up shell casings. Has anyone run into an AMNT head stamp. The google says it should be RUAG AMMOTEC NON TOXIC. It has a single flash hole but does want to de-prime. Can’t tell if the flash hole is too small or off center. Has anyone had any experience with these? __________________ "...I would walk with my people if I could find them..."

December 10, 2024, 05:54 PM	#3
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,743	Non-toxic primers have historically had larger flash holes than standard, but formulations change over time and maybe yours are small. For checking the flash hole size, the easiest thing is probably just to sacrifice one case by cutting the head off of it and checking fit with your die's decapping pin (or a spare, if your die uses replaceable ones). I suspect, having seen it before, that it is more likely you have an unusually strong primer crimp. I've had some military cases in which the decapping pin formed the primer cup bottom into a cone before they let go, and at least one that broke, leaving the sides of the primer cup in the primer pockets. You could try a drop of penetrating oil on the primers with the case mouth down on a flat surface and letting it sit overnight to see if that helps. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

December 11, 2024, 03:56 PM	#4
ADIDAS69 Senior Member Join Date: October 17, 2009 Location: Seattle Posts: 397	Fortunately it was only 30 casings out of 10 gallons. I’ve had the experience you’re talking about re deforming primers because they’re really stuck in. This feels like a hard stop similar to a Berdan case. So I put them in the smelting pile. I wil probably investigate the suggestion you make largely because my brain has a “completionist” gear that can’t leave a mystery alone. __________________ "...I would walk with my people if I could find them..."

December 14, 2024, 09:19 PM	#6
ADIDAS69 Senior Member Join Date: October 17, 2009 Location: Seattle Posts: 397	Well sorting as I resize and de-prime and only sorting for reloadable or not. These ten gallons will be just regular ball ammo. For my proper bolt guns I buy Nosler brass and it remains distinctly segregated from the rest, there were 200 berdan and these few weird one which cost me two de-priming pins. On the whole ten gallons of free brass it seems like a fair enough trade. __________________ "...I would walk with my people if I could find them..."

December 15, 2024, 04:26 PM	#7
Paul B. Senior Member Join Date: March 28, 1999 Location: Tucson, AZ Posts: 3,933	I never had much problem when decapping crimped primer until I worked wth a batch of military .223. Broke a couple of decapping pins so I invested in one of those Lee decapping tools you whack with a hammer. It knocked them out just fine and after removing the crimp ave beed trouble free brass. Before someone asks, "Why bother?" I'll add that is was a bit over 1,000 pieces of brass to decap. Paul B. __________________ COMPROMISE IS NOT AN OPTION!

December 10, 2024, 05:29 PM	#2
jetinteriorguy Senior Member Join Date: April 28, 2013 Posts: 3,476	[QUOTE=ADIDAS69;6986279]Been running through bucket of range pick up shell casings. Has anyone run into an AMNT head stamp. The google says it should be RUAG AMMOTEC NON TOXIC. It has a single flash hole but does want to de-prime. Can’t tell if the flash hole is too small or off center. Has anyone had any experience with these?[ I misread the post making my answer not applicable.

December 12, 2024, 11:44 AM	#5
Viper225 Senior Member Join Date: September 20, 2009 Location: SC Missouri Posts: 672	Looks like you are sorting your brass. I would probably sort those 30 cases into the Scrap Brass Bucket. Problem solved I am always amazed at the different head stamps you can find. I came up with a bunch of TW Military a while back. Someone must have had an old ammo can of it stashed that they decided to shoot up at the Range. Bob R

December 16, 2024, 12:17 PM	#8
jetinteriorguy Senior Member Join Date: April 28, 2013 Posts: 3,476	Squirrel Daddy replacement decapping pins for the Lee universal decapping die are a definite upgrade, or just don’t overtighten the collet on the pin in the die. The trick to making it so the pin doesn’t give way too easy is to make sure there isn’t the slightest bit of oil or lube of any kind on the pin or collet jaws. If you do this you don’t have to crank it down so tight to prevent it constantly slipping but it will slip when needed to protect the pin from bending or breaking.