Why Turn Neck Exterior?

[retired]

sorry not close enough for precision.

The Wilson Trimmer does this, essentially. The case holders are more or less open-ended dies, and they sell reamers.

Danny

 

[danny]

sorry not close enough for precision.

They are close enough that nearly all people consider them to produce the finest trimming results, so they must be more than close enough.

Danny

 

[retired]

we are talking INSIDE NECK TURNING/BORING, not case trimming.
i have several of the case trimmers, and a neck reamer,BUT NECK REAMING IS NOT NECK BORING.

They are close enough that nearly all people consider them to produce the finest trimming results, so they must be more than close enough.

Danny

 

[butchlambert]

If you ream wouldn't you need a set of reamers in 0.0001" increments to control how much material you remove. The reamer follows the contour of the neck. It isn't a center line boring operation. The worlds best SR bench rest shooters don't inside ream to the best of my knowledge. Correct me if Tony Boyer does it different. In order to O.D. turn you have to run an expander mandrel (one std diameter) inside the necks to get a tight fit on the neck turner mandrel. Then neck turn. This seems to be good enough for the worlds best SR competitors. An inside expander mandel pushes the high spot and a large area around it outward. Impossible to push just the high spot outward. The springback is probably greater than the high spot that got pushed outward. Bottom line I will only O.D. turn.

Why would you need .0001" increments in your inside reamers, PPC I'm speaking of?

 

[Dusty Stevens]

Can you imagine the costs involved in a neck reaming operation that 99% of shooters couldnt do compared to an outside turning operation 99% can do? Can you imagine how many more posts we would have about chatter in necks affecting accuracy and such?