Test Gun: Glock 20
Barrel length: 4.9 inches.
Ammunition: Winchester 10mm 175gr Silvertip JHP (W10MMST)
Test media: 10% Vyse Ballistics Gel
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1160fps
BB Calibration: inches. 4 inches
Unfortunately, my chronograph was not working and I was not able to get the velocity of the rounds that impacted the gel. The five shot average was taking the following day. I got a five shot average of 1160fps with a low of 1153 and a high of 1170fps. Point of impact was just a little high at 10 yards. The BB shot was a little deep and just under4 inches.
The first round in the bare gel block penetrated to 12.25 inches and expanded to .75 by .74 inches. The recovered weight was 167.9 grains. Round two penetrated to 13.25 with a recovered weight of 168 grains. Expansion was .72 by .68 inches.
With the heavy clothing shots, round one expanded to .70 by .65 inches and penetrated to 13.75 inches. It’s recovered weight was 169.5 grains. The second round penetrated to 15 inches with a recovered weight of 196.6 grains. Expansion was .70 by .64 inches.
Cross section of the gel two and a half inches in the block. All rounds lost jacket and lead within the first four inches.
General Cartridge 