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.223 XM-855 / SS-109 Ammo

This is a discussion on .223 XM-855 / SS-109 Ammo within the Ammo Dump forums, part of the Firearm Forum category; Question, what is the difference between the .223 XM-885 62 gr. steel penetrator round and the .223 SS-109 62 gr. steel penetrator round? I've got ...


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Old June 5th, 2011, 03:56 PM   #1
 
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.223 XM-855 / SS-109 Ammo

Question, what is the difference between the .223 XM-885 62 gr. steel penetrator round and the .223 SS-109 62 gr. steel penetrator round? I've got a butt load of the SS-109 green tip ammo from Lake City and just wondering what's up with the XM-885 cartridge?



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Old June 5th, 2011, 08:17 PM   #2
 
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Originally Posted by holeshot308 View Post
Question, what is the difference between the .223 XM-885 62 gr. steel penetrator round and the .223 SS-109 62 gr. steel penetrator round? I've got a butt load of the SS-109 green tip ammo from Lake City and just wondering what's up with the XM-885 cartridge?
I understand they are basically the same ammo except the XM-885 is hotter. The SS-109 is what NATO uses and is a bit milder. Both replace the XM-193 for use in the field.
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Old June 5th, 2011, 08:36 PM   #3
 
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Originally Posted by holeshot308 View Post
Question, what is the difference between the .223 XM-885 62 gr. steel penetrator round and the .223 SS-109 62 gr. steel penetrator round? I've got a butt load of the SS-109 green tip ammo from Lake City and just wondering what's up with the XM-885 cartridge?
Additional info: these rounds use the same bullet but the SS-109 is manufactured by Fabrique Nationale (FN) However, the SS-109 doesn't meet US MilSpec (which are tighter than FN.). The green tip is a color code to show that these rounds should not be used in older rifles (they are too hot and the older rifles won't stabilize the 62 grain bullet - they have a 1:12 twist.). However, both rounds are perfectly safe for the SR-556.
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