FORENSIC BALLISTIC

12-16 Inclusive M (medium) 1-11 inclusive S (small) 12-16 Inclusive M (medium) 17 or more ridges L (large) 17 or more ridges L (large) 1-17 inclusive S (small) 18 to 22 inclusive M (medium) 23 or more ridges L (large) The following symbols are used to illustrate the sequences of … ................
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