The ammo used was actually the TAP version of the new Sub-X load. But I called Hornday Customer Service and the fellow I spoke with told me the TAP load is the same as the civilian stuff.
Now before I get too far I want to warn you that my windshield test probably isn't going to be up to FBI standard. I used a windshield from the junk yard and leaned it back at a 45° angle but didn't turn it at 15° as is called for. The windshield was already curved across its face so I just shot it straight on as best as I could. Was I shooting at 15 degrees? I'm not sure.
Also, given the height of the windshield and the little table I had to set my gel on, I wasn't able to chronograph the windshield shots. I did chronograph the shots through clothing however. More on that in just a minute.
I fired two rounds through auto glass at the block that was covered with layer of
cotton t-shirt as well as cotton shirt--FBI light clothing. The gel and clothing layer was set 18" back from the target area of the glass. One bullet was recovered without issue and stayed in the block. The other went low and exited out the bottom corner of the block. It was not recovered.
Here is the bullet recovered from the glass test. It mushroomed well but lost about 30 grains of weight. Penetration was 11.75 inches.