[headstamp 2]

“Seized inside the school were the following: a Bushmaster .223 caliber— model XM15-E2S rifle with high capacity 30 round clips”

Um, Mr. College Educated Forensics Idiot, they are referred to as 30 round detachable box MAGAZINES.

[Uncle Chip]

I think he had two 15 round clips taped together for rapid changeout, thus they may be referring to them as 30 round clips.

[9YearLurker]

http://www.minutemanreview.com/2008/09/clip-vs-magazine-lesson-in-firearm.html