Please give your recommendations on a good "manual" for long distance shooting. Whether it's a FM / Military Training Guide or a civilian book about the subject that assumes the shooter is starting from a beginning level. Proficient with firearms but ignorant of proven methods for long distance shooting. By long distance I mean above 200 to 250 yds to 1000. I think it would be really interesting to get into pulling off some serious long distance shots for fun. Unfortunately I don't have the possibility of owning a .50 caliber so I'm going to have to go with the reliable 30.06 deer rifle. It would also be cool to learn some actual sniper techniques and training as well.