Also,
That and I've never seen a "round nose" .223 round. Spire, hollow, fmj, vldc, moly-coated... Round nose is a new one.
There are some round-nosed lead bullet molds available in .224, and Corbin has some swage dies for round nosed pills in .224.
I’ll admit they’re hardly common (and they’d make an already low BC even lower), but if you really, really want a round nosed .224 pill, you can get or make one.
I noticed the same thing. He was making up s**t as fast as he could spew it. You could tell he was tap-dancing the moment he started talking about bullet velocity. He put his mouth on autopilot while he racked his feeble brain for some numbers relative to the .223. He couldn’t find anything so he just spat out a broad range of numbers and said it depended on the type of bullet “round-nosed etc.” It’s the kind of BS a kid in high school will make up on the fly for a test when he hasn’t studied the material but wants to sound like he does.