I'm having a hard time thinking of of polite way to do this.
I respect him and all the work TB has done.
He doesn't know what he's talking about with respect to Monos however.
We're not talking about solids that punch a caliber sized hole all the way through an animal.
No, most premium copper bullets are not going to shed a great deal of weight because they are not designed to but the best of them are made from soft enough alloys they do expand, some quite well.
He's also completely discounting the damage done by the shockwave running through the vitals which at high velocity impact speeds can literally turn everything in an animal's chest to runny, lumpy, jello.
He's also discounting the fairly frequent failures of even premium conventional bullets to expand properly, some of which pencil through, some of which virtually explode with little or no penetration producing horrible wounds animals are likely to die of days or even weeks later.
I want to see that 75-95% weight retention and consistent, reliable expansion. I've only gotten that with Bonded Bullets and Mono's.
There are some mono's i've been very unimpressed with because if they don't break a major bone like the Humerus they don't expand enough to suit me.
I put one made by a manufacturer I respect a whole lot through the entire length of a large boar that did not expand at all and without dogs we'd have never found, finished, and recovered him because he was able to run more than half a mile into very brushy, rough country.
I've seen virtually the same though from some premium cup and core bullets that shed their led too easily and did not retain enough weight to do much damage internally.
I've seen unbonded tipped bullets turn almost completely inside out and pencil out the other side doing little internal damage requiring one or more follow up shots.
I don't see any data supporting the idea that a good mono is going to be more prone to failures than many conventionally made bullets, even some considered to be "premium bullets".
Good man, fine company, but he seems to be a couple of decades behind in understanding the mono's on the market today.