How to Use Hornady Neck Sizer

When you fire a gun, expanding gasses from the powder charge produce force inside a brass ammunition casing, causing the case to stretch. The goal of reloading used shell casings, aside from saving money, is to create the most accurate ammunition possible. Before salvaged casings can be reloaded, they must be resized to ensure proper fit. Unlike full-length resizing, neck sizing resizes only the top of the casing, which some shooters contend increases accuracy and extends brass life.

Things You'll Need

  • Hornady neck resizing die
  • Hornady reloading press
  • Hornady shell holder
  • Case resizing wax
  • Case trimmer
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Instructions

    • 1

      Screw the Hornady neck resizing die into a Hornady reloading press. Clip the shell holder to the base of the press.

    • 2

      Apply a thin coat of resizing wax to the neck and shoulder of the brass shell casing. Slide the rim of the casing firmly and fully into the groove on the shell holder.

    • 3

      Bring the handle of the press down until the neck resizing die engages the top of the shell casing.

    • 4

      Work the handle of the reloading press down until the die is about halfway down the neck of the casing. Return the handle to the top if its stroke. Bring the handle down a second time until the die completely encases the neck of the brass -- all the way down to the shoulder of the casing.

    • 5

      Return the handle to the top of its stroke. Remove the shell casing from the press.

    • 6

      Trim the case neck, using the case trimmer, to the specification listed in the Hornady reloading manual.