from Off The Grid News

[NorthernRaider]

(31 January 2013, 14:56)Scythe13 Wrote: I thought ss109 was the 5.56 standardisation, and nothing to do with the 9mm? Or have I been informed wrongly?

No mate your probably right and I'm having a senior moment, the 9mm comes or came like the 5.56 in two weights / lengths that were suited like the 5.56 to barrels with different lengths and twists in the rifling., now I'm narked cos I cant remember the right number !!

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God I AM going senile, how can I forget and confuse 7n21 P and 7n31 +P !!!! and mix it up with SS109
9 mm NATO
9×19mm Parabellum +P
9×19mm 7N21 +P+
9×19mm 7N31 +P+