Those magazines were wedged in place; glossy covers and pages, like bone. I'd multiply the penetration in flesh and bone by 7 to 10. As expected, the 500 Hornady DGX out-penetrated the others by 2 to 3 inches and cracked and bulged magazines al least a couple inches beyond that. But it didn't begin to expand until penetration was 2.5 - 3".
And I was impressed with the "little" 250gr MonoFlex, it was flattened but retained nearly all it weight (even to some of the red plastic point).
The last magazine with a clear penetration of about 1" in diameter was by the Hornady, and the others hadn't even shown a dent in it.
Some pics tomorrow to Sir Ron if he wants to put some up here.
