The "cool stuff" would be heavier higher bc bullets than what a standard twist would be able to handle. The only thing that holds bullet makers back is the lack of faster twist barrels out there to handle longer bullets. You are getting a bit faster than standard twist for the .243 cal and I think that is a good thing.
Steve
Oh yeah. I think that's pretty cool as well. I have always been intrigued by shooting stuff to great distances and this will fulfill that. What do you guys think a good load for the 105 class bullets would be? I've heard that imr4350 is a pretty 243 friendly powder.