Quote Originally Posted by wbm View Post
Parent case for the 6.5 Creedmoor is .30 TC.
This is exactly right. The 30 TC was the parent to the 6.5 Creedmoor. The 30 TC is just a 308 that has been shortened a bit though. As far as the magazine is concerned they are all the same, because the body diameter is the same of the cartridge.