I think that it really depends on the area. I'm not sure if it is genetics or weather or what but it seems like most the bucks in a general area shed around the same time. Though there are not tons of deer in my area it seems like the bucks that I do see lose at around the same time, and it's usually mid-February to mid-March. 100 miles away, the deer seem to drop mostly in March, I have even seen a few forkies packing in April. In another area, a buddy was telling me the deer were 90% shed out before the end of February.
Not sure if it is coincidence or an actual difference in areas.