Redding .300 Titanium Nitride Neck Sizing Bushing (76300)

Description

Redding's Titanium Nitride neck sizing bushings are one of those small parts that make a real difference once you start chasing consistency on the bench. This one measures .300 inches and carries part number 76300. It starts life as heat treated steel that's hand polished to a surface hardness of Rc 60-62, then gets a titanium nitride coating that boosts surface hardness even further and slicks up the sizing stroke. The result is less friction pulling the neck through the bushing, which means less stress on your brass and more uniform neck tension shot to shot.

Why the .300 Titanium Nitride Bushing Earns a Spot in Your Kit

Neck tension is the quiet variable behind a lot of accuracy problems, and a bushing setup lets you control it directly instead of leaving it to a one-size expander. By picking the right size, you size the neck only as much as you need to hold the bullet, which keeps your brass living longer and your runout down. The titanium nitride finish is the upgrade over plain steel bushings for folks who want the smoothest possible sizing and a little extra lubricity, especially handy if you run dry or lightly lubed necks.

Picking the Right Size and Fit for the .300 TiN Bushing

Sizing bushings like this freely interchange across Redding's bushing-style dies, including the Type S neck and full length dies, and they'll work in most popular brands of bushing dies too. To land on the correct bushing, measure the outside neck diameter of a loaded round with a quality micrometer, then subtract about .001 to .002 inches to account for brass spring back and the tension you want on the bullet. Each bushing is laser marked with its size, so there's no guessing which one you grabbed when you've got a few in the box.

Redding offers these in .001 inch steps across the full caliber range, so it's easy to fine tune for different brass lots or neck wall thicknesses as your load develops.