bullet fingerprinting

NOUN
21 LETTERS · STARTS WITH B

bullet fingerprinting is a valid 21-letter word worth 29 points in Scrabble and 39 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3U1L1L1E1T1F4I1N1G2E1R1P3R1I1N1T1I1N1G2
3 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 2 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 2 =29 PTS
DOUBLE WORD → 58TRIPLE WORD → 87
MEANING

What does bullet fingerprinting mean?

NOUN · 1 SENSE
1

Identification of the gun that fired a bullet from an analysis of the unique marks that every gun makes on the bullet it fires and on the shell ejected from it.