I've always felt that there were more of these types of guns carried during our era than all the large Colt, S&W and Remington's belt guns combined. Especially after open carry became frowned upon.
As for rather having a .450, since it's doubtful you bought it for daily carry and self defense, and since you already load the 38 S&W, I think your better off with this one.
Will Ketchum