Ganyana actually discussed the metplat as well and concures with your info--

9.3

No he is saying it plays a part in the penetration equation..proper velocity is critical as well per the article..talks about his father killing 17 elephants with 18 shots--and even though, at that time, the two items we are discussing were perfect for that caliber..

You really need to read the article--is very interesting...

Rip