Fireforming cases for .30-06 ai entails shooting regular '06 rounds and then reloading..however, does that mean if I want to fireform using Norma brass, I'll need to basically waste the first 40 rounds (assuming I am happy to work with just 40 cases for now), or will the AI shoot fine with the standard .30-06 rounds until I've used/fireformed enough brass to start reloading them?,,OR, will using the standard '06 rounds result in much lower velocity and inconsistent results only being any good for the fireforming process?