Redding Titanium Nitride Bushing/.312
The Redding Titanium Nitride Bushing/.312 is a precision neck-sizing bushing engineered for reloaders who demand reduced friction and extended tool life. Built on a foundation of heat-treated steel, this bushing receives an additional titanium nitride surface coating that boosts effective hardness and minimizes drag during the sizing stroke. If you're running a Redding bushing neck-sizing die and need a .312-inch bushing, this coated version delivers smoother operation and better durability than standard steel alternatives.
Titanium nitride coating isn't just a marketing layer—it's a proven technology for reducing die friction and heat generation, which means easier press operation and more consistent neck sizing over extended reloading sessions. The .312 bushing fits the full range of rifle cartridges that require this bore diameter, making it a straightforward swap if you're upgrading from an older or uncoated bushing.
Redding manufactures these bushings in .001-inch increments across the entire range (.185 through .368 inches), so you know you're getting the exact sizing diameter your cartridge demands. The titanium nitride finish is the key differentiator here: it's harder, slicker, and built to outlast standard heat-treated steel in the demanding environment of a reloading press.
Key Features
- Heat-treated steel construction with titanium nitride surface coating for reduced friction and extended lifespan
- .312-inch sizing diameter
- Engineered for use with Redding bushing neck-sizing dies
- Manufactured in .001-inch increments for precise cartridge matching
Specifications
| Brand | Redding |
| Product Type | Neck-Sizing Bushing |
| Bushing Size | .312 inches |
| Surface Coating | Titanium Nitride |
| Base Material | Heat-Treated Steel |
Frequently Asked Questions
What cartridges use a .312-inch neck bushing?
The .312-inch bushing accommodates cartridges with .312-inch neck diameters. Check your specific cartridge's published reloading specifications to confirm the correct bushing size for your application.
Will this bushing work with my Redding die?
This bushing is designed for use with Redding bushing neck-sizing dies. Verify your die is a bushing-style die before ordering; other die types use different components.
How does titanium nitride coating improve performance?
The titanium nitride surface increases hardness and reduces friction during the sizing stroke, which eases press operation, reduces heat buildup, and extends the working life of the bushing compared to uncoated steel alternatives.

