99% is a US Army Statistic with M193 - TAP and Rem 55JHP's are even better.
Boy, that might be "official" army, but my conversations with a lot of guys from the sand box, vs 1.0 and 1,1, say otherwise. A good friend who is a Navy Doc, who spent most of O5 in Fallujah had nothing good to say about the 5.56 in combat. He personally repaired BG' s we wanted to save who had up to 9 that's nine 5.56 holes in them. Many many kept fighting with multiple holes in them, leading to a favorite topic of discussion among those in ER about when the M14 or a similar device was going to be returned to combat. Too many of the people shot with the 5.56 just has pencil holes thru and thru.
Rounds are tested from 20 and 24 inch barrels, then used in 11 and 14 inch barrels, and they dont work