Skeeter, I'm no expert but I have spent a fair amount of time researching load data and even designing my own wildcats for competition. The first two questions you need an answer to before deciding on chambering for a cartridge are
1. Can I get Lapua or Norma brass for it?
2. What match bullets are available in this caliber?
If you don't have a real good answer to both those questions then your cartridge will probably be a headache to compete with.
WSSM cases will take off with 1k shooters as soon as someone makes decent brass. Winchester, Federal, Remington just don't get it done, unfortunately.