Step 1) Measure and record temperature and relative humidity.
Step 2) Run a 5 shot velocity average over a ProChrono Digital Chronograph at a distance of 10 feet.
Step 3) Run test shot through 4 layers of 14 oz/yard heavy-weight denim into a block of Clear Ballistics Gel that is calibrated to 10% Ordnance Gel density. Shot distance is 10 feet.
Step 4) Run a 600 fps calibration test bb shot into the Clear Ballistics gel block and record penetration depth.
Video Documentation of the Entire Test from Range to Bullet Recovery:
My Thoughts on This Load:
My first thought is that I have to find a new hobby. I have the absolute worst luck when it comes down to terminal test shots. There really isn't any good reason why the terminal test shot would be 35 feet per second slower than the five shot velocity average other than just random bad luck. In truth, I never complain when the test shot goes out faster than the average, and that happens with about equal frequency as shots going out slower than the average.
Would the extra 35 feet per second velocity have been enough to cause bullet upset and allow the bullet to expand? In this case, probably not. The recovered bullet was totally plugged with denim, but the nose had compressed and expanded a small amount. The bullet basically turned into a full wad cutter profile after hitting the denim.
Pick or Pan:
If there is a trend with these tests of the heavy 158 grain bullets fired from our sub two inch long snub revolver, it seems to be that slow velocity and heavy weight isn't an ideal combination for defeating heavy clothing barriers. So far we've seen 2 of our 3 test bullets completely plug with denim and fail to expand. The good news with this test is the bullet left a small temporary stretch cavity, clearly visible permanent wound channel, but didn't penetrate too deeply.
Disclaimer....This test should not be considered an endorsement or recommendation for the product(s) tested. All tests represent actual performance in ballistics testing media. Terminal performance in all other media will show different results. It is up to each individual to make their own personal decision on which specific ammunition to use for their needs. It's also critically important to test any ammo in YOUR SPECIFIC FIREARM before relying on it for any purpose.
Ammunition labeled as +P or +P+ should only be used in firearms that have been certified by the manufacturer as safe for the additional pressures generated by these ammunition types.