It is not calibrated to FBI standards, jsut homemade, off the shelf gelatin. The extent of my calibration is a BB fired at 600 fps and measuring the penetration, most of which fall within 2.5-3.5 inches. I have tried the same penetration test using water and the same results have occured, plugging up with material and not expanding, some even capable of being reloaded and shot again.
I have had trouble with the T-Series in 9mm and 45 ACP expanding in my gelatin after going through 4 layers of denim. I am using a gallon and a half of water and 20 oz. of gelatin set in a 16x4x4" mold.
Just today I went out and shot 5 more rounds into bare gelatin, to see what it would do if it encountered used gelatin, and it still performed as intended, but a couple of them did shed the talons within the first 4 inches of penetration. The expanded bullets were picture perfect and left devastating wound tracks.
I have 185 gr Golden Sabers, 165 gr+P Magtech First Defense and 230 gr HydraShoks, and 185 gr Silvertips, and they dont have as much trouble with expansion through denim, but the end diameter is nowhere near the size of the modern LEO ammunition.
Maybe I am doing something wrong, because I have debated with myself if they do the testing with the layers spread out with space between them, or if they just put the layers on the gelatin. I chose the latter because I think that the testing would be more along the lines if someone was actually wearing the clothing, but I dont know of anyone that would be wearing four pairs of pants on their torso.
