Redding Neck Sizing Die For Bottleneck Cases .20 Nosler

A Redding neck sizing die for bottleneck cases in .20 Nosler gives reloaders precision control over case neck dimensions while preserving brass life across multiple loadings. Unlike full-length sizing, neck sizing works only on the case neck itself—leaving the shoulder and body untouched—which means your fired cases stay tuned to the rifle they were fired in. This approach is ideal for bolt-action rifle shooters who want tighter tolerances, improved accuracy, and maximum brass longevity without the wear that comes from resizing the entire cartridge.

Redding dies are built from premium alloy steel and machined to exacting tolerances on Hardinge Super-Precision lathes. Each die is heat-treated in controlled furnaces and hand-polished to ensure smooth operation shot after shot. Before it ships, every die is ultrasonically cleaned and inspected to guarantee you're getting a tool built to last a lifetime. If you reload for a .20 Nosler and want to maximize case life while maintaining the accuracy advantage of a fire-formed chamber, this is the die to reach for.

Keep in mind: neck sizing dies work best when cases remain dedicated to the rifle they were fired in. Never swap neck-sized cases between different rifles, since the neck alone is sized to your specific rifle's chamber. This single-rifle approach is part of what makes neck sizing so effective for precision shooting.

Key Features

• Sizes only the case neck, preserving shoulder and body dimensions for improved accuracy and brass longevity
• Premium alloy steel construction machined to tight tolerances on Hardinge Super-Precision equipment
• Heat-treated in atmospherically controlled furnaces for consistent performance
• Hand-polished for smooth, reliable operation
• Ultrasonically cleaned and inspected before shipment
• Ideal for dedicated bolt-action rifle reloading

Specifications

Frequently Asked Questions

What's the difference between neck sizing and full-length sizing?

Neck sizing dies resize only the case neck, while full-length dies resize the entire cartridge including the shoulder and body. Neck sizing preserves brass longer, maintains tighter chamber fit, and improves accuracy for shooters who keep cases dedicated to one rifle. Full-length sizing is better for rifles that shoot cases from multiple firearms.

Can I use neck-sized cases in different rifles?

No. Cases sized only in the neck are fitted specifically to the rifle they were fired in. Never interchange neck-sized cases between different rifles, since the shoulder and body dimensions remain fireformed to their original chamber.

What rifle type is this die designed for?

Neck sizing dies are ideal for bolt-action rifles, where shooters typically maintain dedicated brass for each rifle and prioritize accuracy and case longevity over versatility.

How long will this die last?

Redding dies are engineered and heat-treated to maintain tolerances and function reliably for a lifetime of reloading when properly used and maintained.