Slim Jim,
There was an aritical in the July/August american handgunner about the 460 X-Frame, that gave it a very good review. It was by Charles E. Petty if I remember correctly.
Anyway thinking back, he mentioned that the 45LC would shoot low in the 460, requireing a sight adjustment, and thats about all be said on the matter....I I think he is saying not to expect stellar accuracy from a 45LC in a 460 cylinder, just plinking fun. Use 460 rounds for accuracy.
Also, can I ask what you think of your Dessert Eagle. They look like alot of fun. Does the weight and bulk make it a little harder to shoot though?