Abstract
The plastic buffer material in certain American shotgun shells emerges from the muzzle with the same velocity as the pellets that it was intended to protect from deformation during the very high accelerative forces associated with the discharge process. These small plastic particles spread out quickly over distance in a predictable, reproducible, and uniform manner as they lose velocity because of air resistance. If these plastic particles strike skin with sufficient velocity and energy, they will produce stipple marks whose distribution and density can be used to establish range of fire. This can be of critical importance in the reconstruction of a shooting involving this type of ammunition.
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