My first impression is that these have a potential to make things very interesting. Imagine shooting a 62 grain bullet out of 10.5...the first video talks about it at the 1:18 mark.

Name:  Capture.JPG
Views: 220
Size:  120.9 KB

Name:  Capture1.JPG
Views: 219
Size:  166.1 KB

https://www.hornady.com/bullets/eld-vt#!/