The only noteworthy thing I see is heavier for caliber bullets....175 gr. .270 when before you had to go 7mm. Maybe pencil. 223 bullets.
You still need a faster twist though
Maybe losing the belt, but then having almost no taper works until you run into less than optimal conditions and find out why .375 h&h has a noticable taper.

Can someone reinvent the .351 WSL?