Anyone have information on the EXP 100gr 5.56 Black Hills


#1

I’ve been researching this loading for a while just never got really serious about it until I found out about the terminal ballistics. I would love to find any data or information on the development of this cartridge.

Thanks,
Mike P

Besides this info.

ammo-oracle.razoreye.net/


#2

It is my understanding that one 100gr experiment involved modifying a M856 Tracer projectile by replacing its tracer compound with lead.


#3

This thread was recently revived over at M4Carbine.net. A member just posted a picture of the Black Hills box.

I believe the ATK 100gr loading involved the modified M856 I mentioned above. Member “Sinister” was formerly the commander of the US Army Marksmanship Unit.

http://www.m4carbine.net/showthread.php?19196-100-Grain-5-56-Rounds