In the current law the 100 yards only applies to when you are hunting on public property. If you are hunting on public property you can not hunt within 100 yards of a dwelling without the owners permission. Also, under the current law, you can hunt on your own property no matter how close your are to your neighbors house as long as you are on your own property.
This new law says you can not hunt on your own property if you are within 100 yards of a dwelling. So if my neighbor builds his house 5 ft from the property line then I can not hunt on my property for the first hundred yards without my neighbors permission. It is asinine to have to ask a neighbor for permission to hunt on my own property.
If you have neighbors on three sides that do not give permission, you could lose hunting rights to a big portion of your own property.