Neck turning and expansion tools

[nheninge]

I agree with you on most account woods, but...

Since the point of the blade that is touching the case is close to the mouth, when cutting towards the shoulder, the shoulder prevents the back part of the blade (the cutting edge) from reaching the shoulder, thus causing a bit of an outer cone on the outside near the shoulder. When fired and resized it would likely push this cone from the outside to an inner doughnut which would need to be reamed.

If the angle of the blade was opposite with the cutting edge/point at the front, then there would be no effect, just a blade that wears out faster at the cutting edge

 

[woods]

Yeah, I missed it that the point was on the outside edge. You're right. Most of the time the blade will not span the entire neck so there would be some of the neck (depending upon caliber) that would be the same thickness and scored by the point an then the neck would gain thickness toward the shoulder.

Along with Dave's problem with the bevel on the wrong side and this with a bad cutter, makes you wonder what those guys at Forster are doing. Normally a bang-up company as far as quality goes.