Tod, that is a sobering story. V-Max bullets are supposedly designed to fragment explosively. They're specifically designed as a varmint bullet, hence the "V" in V-Max. Your story is analgous to a Barnes X blowing apart after penetrating one inch on a small deer -- an absolute failure of the bullet's designed performance.
Personally, I was planning to load those very bullets for occasional long-range varminting in my heavy 6.5x55. Now I'm concerned.
On the other hand, I've heard that 155 A-Maxes in .308 generally perform like Nosler Ballistic Tips on deer-sized game, which means they should work. But I have heard that the Scenars have a fairly hard jacket, which means that there's a good chance they would act like a full metal jacket on impact.