FBI 10% Gelatin Protocol
Definition
The standard medium for law-enforcement ammunition testing, adopted after the 1986 Miami shootout. Ten percent by weight porcine gelatin calibrated with a steel BB drop test (8.5-9.5 cm penetration at 590 fps). Sets minimum penetration floor of 12 inches (30.5 cm) for duty-ammunition qualification.
Related terms
- Hydrostatic Shock
- The contested hypothesis that a high-velocity bullet generates a remote pressure wave through body fluids sufficient to produce immediate neurological incapacitation without...
- Permanent Cavity
- The lasting wound channel produced by the bullet's direct crushing and laceration of tissue. Diameter approximates expanded projectile diameter. At handgun velocities,...
- Sectional Density (SD)
- The ratio of a bullet's mass to the square of its diameter. Higher SD values predict greater penetration depth in a given...
- Temporary Cavity
- The transient radial tissue displacement produced by a bullet's passing. Caused by the transfer of kinetic energy to surrounding tissue via compression...
Explained in
- Penetration Mechanics and the Hydrostatic-Shock ModelThe standard medium for law-enforcement ammunition testing, adopted after the 1986 Miami shootout. Ten percent by weight porcine gelatin calibrated with a stee...