P.O. Ackley and other WildCat Guru\'s Books? I am interested in learning about improvements to cartridges made by P.O. Ackley and other Wildcat Guru types. Anybody know of any good books I can learn from? Is there a 300WM Ackley improved? I will be rebarreling and customizing my Sako 75 SS this winter. I would likely stick to 300WM so I can use Lapua brass but I just might go to a 300WM Ackley improved if there is such a thing.