Our 20% Shooter Block is perfect for terminal ballistics testing for all handguns and lower powered rifles where projectile penetrations are less than 20 inches. The Shooter Block meets FBI ballistics testing protocol 100%. The Ballistic Gelatin Shooter Block main purpose is to give you the shooter 20 inches ballistic gelatin to shoot into while maintaining the same portability as the Ballistic Gelatin FBI Block. The Ballistic Gelatin Shooter Block comes with a 36 inches of shooting face and weighs in at 22.5 lbs. and increase of 5.3 lbs more than the Ballistic Gelatin FBI Block. Note: This synthetic gel should only be used for ballistic testing. It is not suitable for medical applications.