Overbore cartridges like the .240 Weatherby and .257 Weatherby just don't make much sense to me.
I disagree. The 240 & 257 Weatherby cartridges are unquestionably exceptional long range hunting calibers. Probably more so today than when Roy Weatherby developed them 60 years ago because modern manufactured bullets can de made to perform more reliably at these higher velocities. They would both also probably make outstanding long range target rounds if chambered in some kind of dedicated custom target rifle. I just personally can’t justify spending the extra $$$. Now if Savage would chamber a Model 12 in 240 Weatherby Magnum I’d be more than a little tempted to give that try.