10% Ballistic Gelatin Tests The tissue simulant utilized in FBI ballistic tests is Kind & Knox or Vyse 250-A ordnance gelatin. The mixture is 10%, by weight. Properly calibrated 10% ordnance gelatin is a reliable tissue simulant. Validation of ballistic gelatin is conducted by firing a .177" steel BB at 590 feet per second (fps), plus or minus 15 fps, into the gelatin, resulting in 8.5 centimeters (cm), plus or minus 1 cm, penetration (2.95" - 3.74"). All gelatin was stored at 40° F until just prior to testing. The gelatin was placed 10 feet from the muzzle of the test weapon (unless otherwise noted). Barrier Testing Standard FBI Protocol measures the penetration performance of a cartridge’s projectile through a series of six tests. Measurements are taken of the depth of penetration to the nearest .25 inch, expansion of projectile, and retained weight of the projectile. Tests One through Six are shot at a distance of 10 feet from the muzzle to the front face of the gelatin block, unless otherwise noted. 4. Wallboard* Two pieces of ½ inch standard gypsum board are set 3.5 inches apart. The gelatin block is placed 18 inches behind the rear most piece of gypsum. This test event simulates a typical building interior wall. 5. Plywood* One piece of 3/4 inch“AA”fir plywood is set 18 inches in front of the gelatin block. This test event simulates the resistance of typical wooden doors or construction timbers. 6. Automobile Glass* One piece (15" X 18") of A.S.I. 1/4 inch laminated automobile safety glass is set at an angle of 45˚ to the horizontal and 15˚ to the side, resulting in a compound angle. The gelatin block is placed 18 inches behind the glass. This test event simulates a shot taken at the driver of a car from the left front quarter of the vehicle. * Tests 3-6 utilize light clothing (e.g. the cotton t-shirt and dress shirt materials mentioned above), in addition to the mentioned intermediate barrier. 4 TEST PROTOCOL h o r n a d y L E . c o m h o r n a d y L E . c o m