The problem with using the shorter rounds is the immense (relatively speaking) distance the bullets have to travel unsupported from the case mouth to the chamber's throat. Unlike the 357/38 and the 44 Magnum/Special, which have only .1" of jump, the 460/45 has about .5" to travel unsupported. That's not to say they'll never shoot accurately.

Someday, when I have enough free time again, I'm going to test how much the difference in length affects accuracy.
Formerly TN Lone Wolf

"We are only as strong as we are united, as weak as we are divided." - J.K. Rowling