Home Forums Reloading Varmint Rifles Why snapping off 25-20 necks

Try the Mule Deer trick:

1. Remove expander
2. Size cases
3. Replace expander and adjust it down so the spent primer is pushed out before the neck enters the neck-sizing portion of the die.

This does at least two things for you; first it expands the neck with the case held straight and second it reduces the stress on the neck which may be causing the snapping off.

(earlier I asked about the neck thickness thinking you might have the dreaded donut from necking down and pushing the shoulder back, are the necks thinner and more consistent closer to the case mouth?)