Well folks. This Saturday I am heading to my gunsmiths shop to put a deposit down on a build. I already have a donor rifle and have already decided on what stock I'm going to use. What I haven't decided on is caliber. I do however have it narrowed down to either 7mm rem mag or the 7mm practical (a 300wm case necked down to 7mm) is there any real reason why I shouldn't choose a wildcat cartridge for my first precision rifle? Thoughts and suggestions would be helpful. Thanks.