Redding .245" Heat-Treated Steel Neck Sizing Bushing - 73245

The Redding .245" Heat-Treated Steel Neck Sizing Bushing - 73245 is a high-quality reloading accessory designed to streamline your reloading process. Crafted from heat-treated steel, these bushings offer durability and precision to enhance your reloading experience.

Key Features:

• Sizes available from .185" to .368" in .001" increments.
• Sizing diameters are hand-polished with a surface hardness of Rc 60-62, reducing sizing effort.

Choosing the right bushing size is crucial for achieving optimal performance in your reloading setup. Here are two recommended methods:

Method 1: Measure Loaded or Dummy Cartridges

Measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. Subtract 0.001" from the cartridge with the smallest average measurement. This accounts for a slight amount of spring back and ensures a proper press fit for the bullet.

Method 2: Measure Neck Wall Thickness

Measure the neck wall thickness of the cartridge cases with a ball-type or tubing micrometer. Double this measurement and add the bullet diameter to calculate the neck diameter of a loaded cartridge. Subtract 0.001" from this figure to determine the bushing size.

While the second method is less desirable due to equipment costs and readability challenges, it can be effective.

If you're working with new cases, the neck diameter is often small enough to hold a bullet without sizing. However, if the neck wall thickness varies by more than 0.002", consider using a slightly smaller bushing and then using a size button in the die for the final inside neck diameter.

Uniform neck wall thickness is essential for accurate reloading. If you encounter variations beyond 0.002", adjustments may be needed to achieve the desired results.

Enhance your reloading precision with the Redding .245" Heat-Treated Steel Neck Sizing Bushing - 73245. Discover the difference that precision engineering and high-quality materials can make in your reloading process!