Shootall,
I am sorry that I didn't explain myself very well. I have gotten permission to hunt on a huge (1,500 acre) tract of land in the mountains in the Shenandoah Valley, that is owned by a private landowner, but which is somehow (I don't know the legalities) administered jointly with the county. It is in some type of wildlife trust.
Due to the large number of deer getting wounded by buckshot (idiots shooting at long ranges) the rules of the trust ban the use of all buckshot. (Rifles are totally OK). Because the county is somehow part of this, the game warden (rightly or wrongly) has advised that he will enforce the special rules of the land, banning buckshot.
So, this restriction isn't a Virginia state law, it is some type of wildlife trust limitation.
You are probably aware that there are several WMAs in Virginia as well, and each of these have different types of hunting restrictions, which are also enforced by the game wardens.
West of the Blue Ridge, almost nobody uses buckshot anyway, since rifles are allowed almost everywhere.
Best Regards,
Mannyrock