Thanks to all for the input. I am thinking that when the fragmentation occurs a lot of damage has been done. So, at I still have confidence in some of my older non-bonded ammo.
Bare in mind that "hype" is a part of marketing. Those "old" bullets, when they were the "latest and greatest", sold for top dollar. Now that there's "new and improved", the older bullets are available at a usually cheaper price.
Not that the bonded bullets aren't "better" in some ways, but they're not necessarily the best of all worlds.
I'm old school in many ways. I'm a handloader, and I found loads that work for me for a variety of animals, in a varienty of firearms and calibers.
I'm also just old enough to have seen "the latest and greatest" change...several times.
Back in the 80's, I used Sierra Bullets...a lot. They didn't work all that well for me, simply because they'd fragment pretty badly. I finally switched to Speer SPBT's in the late 1980's, and I still use them today.
I've shot through elk, bison, and bears with these bullets without any trouble at all. A deer, in comparison, is very easy to shoot through, and I get good expansion even on deer.
So what's my point? I see a majority of hunters who will only use the "best" bullets for hunting, and they seem to base "best" on price and marketing, rather than what's needed to accomplish the task at hand.
They shoot Partitions, A-frames, Barnes, and other bullets with fancy names, designed to give deep penetration and good performance. They pay a premium for a half-box of them, too. I say "half-box" because they usually pay more (sometimes double) for a 50 cnt box than I do for a 100 cnt box of my "old, outdated" bullets that still kill like the hammer of Thor.
But as long as folks look for a crutch, there will always be "new and improved".
That doesn't mean that one must pay the price for it to succeed, whatever their shooting needs might be. There's nothing wrong with those "old" bullets, whether for target shooting, hunting, or self-defense.
And if one fails to do the job, do what you'd do with those new bullets...shoot again.
Daryl