inaccuracy from the shorter cartridges comes from the distance the bullet has to jump from the case mouth to the lands and grooves. Most long throats wont shoot them well. The 460 is very versatile in that it shoots them all, but you may have to experimet with specialty length cartridges with e 45LC and your Casull. The same process usually carries with a 357 when shooting 38 specials. My K-38 is much more accurate with them than my 657 357 but the difference is less than you experience. The chamber space is different to. You have much more.