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Does this just flare the top of the case or does it expand the neck all the way down? — 1 Answer

by Rick, from PA, United States Asked on April 19, 2018

Name Lyman Neck Expanding Rifle "M" Dies (5)
As Low As $41.99 Save Up to 15%
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Answered by Ethan C., Gear Expert, from IL, United States, on June 27, 2018

A bit of both. There are two steps to it. The first step expands the inside of the full case neck to just under bullet diameter for precise case neck tension in the finished reload.
The second step expands the case mouth to bullet diameter or slightly over. This allows the jacketed or cast bullet to be started perfectly centered in the case mouth and properly aligned with the axis of the case neck.

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Last updated 2025-11-12 UTC.