Marty, sheer speculation here but I think the popping of diaphragms is due to speed more than bullet size�just a wild jazzed guess from here...
I saw the very flat front on the expanded Nosler. Put that together with speed and you get what is called the "splat effect" in scientific circles. For those of you in Rio Linda, it's like a belly flop landing.
Trust me, I'm a doctor.
