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10% ordnance gelatin (FBI protocol)

Porcine or bovine gelatin at 10 g per 100 mL water, chilled to 4°C, calibrated with a 4.5mm steel BB at 590 fps. The BB must penetrate 8.3-9.5 cm. Used by FBI, most US law-enforcement agencies, and UK CAST as the standard terminal-performance test medium.

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Related terms

20% ordnance gelatin (NATO protocol)Back-face deformation (BFD)Clear Ballistics (Permagel)IS 17051-2018NIJ Standard 0101.06

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