I read the headspace thread above with interest.

Particulary interesting was one man's ingenious way of fireforming .303 brass to headspace on the shoulder without stretching above the web.

Could this be done with a rimless case by seating a bullet out so far that it engages the rifling and let the bore actually seat the bullet?

I kind of like the idea of fireforming brass for accuracy yet still having the reliability of using factory ammo. That and I'm afraid that turning the barrel in further will not be an option. I have a front sight ramp on it and I don't want it lookin' crooked.