michigandrake.

I do not know if you can use sabots or not but this what I was using .458 350 grain Hornady HP's (a regualr rifle bullet) I have sinced switched to a 300 grain .458 Hornady for shooting target practice & a Nosler Partition 300 grain protected point for elk.

http://img.photobucket.com/albums/v1...loader/458.jpg

and here is the ballistic sheet

http://img.photobucket.com/albums/v1...Ballistics.jpg

Give a shout if you have any questions