Years ago we used to take a 7mm nosler partition and make a flat nosed wad cutter out of the aft portion of the bullet, taking every thing north of the partition off. we then went to a wad cutter leaving .15 in front of the partition, this worked great. Later when I got my new 22-250 700 ADL tuned up, and found out that was as good a shooter as anything I owned, I started using crossed sticks and head shots. For a rifle that was less than $300 dollars out the door, its amazing to see easy head shots at 300+ yards.