I am used to the .308 (its just a .300 bullet anyway, the .008 is the diameter of the lower part of the rifling), but looking for an upgrade. I have shot both in the standard long cartridge and hunt everything from white tail to elk. I like the 7mm trajectory, but like the shock of the .300MAG, esspecially with the full lead bullet for white tail, it is a pain to track. My hunting partner has a 300 weatherby and is using ballistic tips which we have found work great for whitetail, they frag tremendously on impact, make a mess on the inside, but is a little safer when we have many people in the field since it frags even when impacting a twig. Was looking at the WSM for something different.