Well, since 148gr .38 WCs going 700ish penetrate right around the 18-21” mark in 10% gelatin, I can’t imagine the .45 would underpenetrate… but I also think there’s a difference between proper WCs, real Keith-style SWCs, and tapered SWCs designed to feed in a semiauto. It’s not a true “big flat meplat, tends to destabilize in wet mediums” bullet.