To satisfy the scientific demands of international wound ballistic experts, we describe the preparation and calibration of our gelatine blocks to a ballistic gelatine equal to 10% ordinance gelatine.

The test media used by the FBI to simulate living tissue is 10% Ballistic Gelatin stored at 4° Centigrade (39.2 Fahrenheit) for at least 48 hours and shot within the 20 minutes removed from the refrigerator.

The specialized "ballistic gelatin" which is normaly used in the USA is form the brand Kind & Knox or form the brand Vyse.

Our Ballistic Gelatin is from the brand GEWÜRZMÜLLER GmbH  Siemensstrasse 1 D-70825 Korntal-Münchingen and the type is LUCULLUS GOLD SPEISEGELATINE.

 

This is a German industrial kitchen gelatin powder.

There are different types of gelatin and different qualities. According Duncan MacPherson small changes in gelatin compositions are possible and allowed. To achieve the same resistance of the FBI calibrated ordinance gelatine we have to use a mixture of 15 % stored at 4°C for at least 48 hours.

We use hot tap water between the 50 and 60 degrees Celsius. A drop of Cinnamon oil per 4 liter to clarify the gel and prevent mold growth.

 

The international accepted calibration method is to fire a .17 steel BB at a velocity of 590 fps in a block 10% ordinance gelatin. This BB must penetrate 8.5 cm (+/- 1 cm) to fall within the acceptable parameters. 

For our calibration we use a Diana Model 6 air pistol to calibrate our gelatin blocks.

 

Velocity of the Diana 6 air pistol with Remington 4.5 mm steel BB's varies from 415 fp/sec to 500 fp/sec.

According the normalised gelatin penetration demands:

393 fp/s must go 50 mm deep ( min. 44mm / max. 55mm)

426 fp/s must go 55 mm deep (min. 50mm / max. 60mm)

459 fp/s must go 61 mm deep (min. 55mm / max. 66mm)

492 fp/s must go 66 mm deep (min. 62mm / max. 72mm)

524 fp/s must go 73 mm deep (min. 68mm / max. 78mm)

Impact 6.5 cm @ 466 fp/sec.

 

VBR cartridge 7.92x24 FMJ-OGI-P

Civilian ammunition cal.  7.92 x 24 AE

Gelatin impacts cal. 7.92x24 AE-FMJ-RN

Gelatin impacts cal 7.92x24 BAP 67 

Gelatin impacts 7.92x24 AP 6 cartridges.