Enhance Precision with Redding Heat-Treated Steel Neck Sizing Bushings

When it comes to achieving optimal accuracy and consistency in your reloading process, Redding's .337" Heat-Treated Steel Neck Sizing Bushing is the solution. Crafted from heat-treated steel, these bushings are designed to elevate your reloading experience.

Key Features:

• Superior Hardness: Redding's neck sizing bushings are meticulously hand-polished to ensure a surface hardness of Rc 60-62. This reduces the effort required for neck sizing and promotes precision in your reloading process.
• Wide Range of Sizes: Choose from a variety of sizes ranging from .185" to .368" in .001" increments. This extensive range ensures that you can find the perfect bushing to suit your specific needs.

Choosing the Right Bushing Size:

Ensuring the correct bushing size is crucial for achieving the desired results. Redding provides two reliable methods for determining the appropriate bushing size:

Method 1: Measuring Cartridge Neck Diameter

The simplest way to find the right bushing size is to measure the neck diameter of several loaded or dummy cartridges using a precise micrometer. After measuring, subtract 0.001" from the cartridge with the smallest average measurement. This slight subtraction compensates for spring back, ensuring a proper press fit for the bullet.

Method 2: Measuring Neck Wall Thickness

Alternatively, you can measure the neck wall thickness of your cartridge cases using a ball-type or tubing micrometer. Double this measurement, then add the bullet diameter to calculate the neck diameter of a loaded cartridge. Subtracting 0.001" from this figure will determine the appropriate bushing size. While this method is effective, it requires a more specialized and relatively expensive micrometer.

If you are working with new cases, you can either measure the neck wall thickness with a ball micrometer or seat boat-tail bullets in a few cases and measure their neck diameter. New cases typically have small enough neck diameters to hold a bullet without sizing.

Keep in mind that the accuracy of your measuring tools and the uniformity of neck wall thickness in your cases play essential roles in selecting the correct bushing size. If your cases have varying neck wall thickness exceeding 0.002", you may need to choose a slightly smaller bushing and fine-tune the inside neck diameter with a size button in the die.

Redding .337" Heat-Treated Steel Neck Sizing Bushings are designed to meet the demands of precision reloaders. Achieve consistent results and enhance your reloading experience with these meticulously crafted bushings.