Bullet Performance of 180 gr Nosler Accubond

Interesting, it looks like a fair bit of the core is missing. Any idea of the retained weight? I swore off accubonds when I lived in Alaska. On two separate occasions they passed through black bear with absolutely no expansion (.30 cal exit wounds) on perfect broadside high heart shots. The rifle was a .30-06, and if I remember correctly they were 180 gr. bullets. I swore never to use them again. This looks like much better performance. I wonder if Nosler has improved the design?

@WAB we killed 4 x Cape Eland, 4 x Gemsbuck, 3 x blesbuck, 1 x warthog on this trip. All 180 gr Nosler AB from my 300 WM or 30-06. No failures. Earlier this year 2 x Bluewildebees and 2 impala using the same combination of bullets and rifles. All one shot kills throgh the lung / heart Some frontal and some broadside. Not one failure.
I recovered two bullets on this trip. Both expanded as expected.

@Alchemist good to hear. As I said, I had two perform like solids on black bear when I lived in AK. Both well placed shots. Others in AK had similar stories. That was shortly after the bullet came out and a number of us got excited and tried it. My guess is they recognized and corrected the problem. By the way, well done on the hunt!