For the 90 second version read this article
https://bergerbullets.com/berger-bul...er-bryan-litz/
Basically he contends that just because you twist fast enough to make round holes doesn’t mean you’re achieving max BC.
Benchrest conventional wisdom was often that you wanted to spin the bullet just fast enough to poke a round hole and no more because accuracy. But litz is saying ok you may be accurate but your bc is less than it could be by spinning it faster. So they built a calculator and put it on Berger’s website some years ago.