Word for A Bullets Effectiveness/Speed AFTER Hitting First Target

If a bullet hits one target; object or body - and then exits and hits a nearby target or other object in the path with less 'punch'...what is the word for that? The lessened energy/velocity of the second hit. This is a question I was asked. A totally random one at that, but welcomed.

The answer to the question is one any of these three.

-Residual Energy [1]
-Intra-Target Velocity [2]
-Post-Target Residual Velocity [3]

In/Tags : bullet waning after first target, word for bullets effectiveness after first target, velocity after first target, intra-target velocity, residual energy bullet

**SOURCES**

Gun Digest Book of .22 Rimfire (Buy Here)

Defense Technical Information Center : Terminal Ballistics (Buy Here)

Federal Rifle Data Book (Buy Here)