That's not a misprint, there are a few .234" wildcats out there. You didn't think they'd let a .23 go by with all those .22s and .24s around, didya

Shoot, somebody had to do it, that was a hole that desperately needed filled in the lineup of cartridges/chamberings, etc.
Don't look now, but someone is thinking of a superlative .21 caliber for a better BC than a .224" while still getting enough BC to mix it up with the .20s. No, it's not me, but I reckon someone is thinking about it, somehow, somewhere................. I think there's already some .18s, to fill in that huge gap between the .17s and .19s..............