Redding .363 Titanium Nitride Neck Sizing Bushing (76363)

Description

This is the .363 diameter Titanium Nitride neck sizing bushing from Redding, part number 76363. If you run a Redding bushing-style die, this is how you fine tune neck tension to match your brass and your load. Instead of oversizing the neck and working the brass more than it needs, you pick a bushing that brings the neck down just enough to hold the bullet right where you want it. Less brass working means longer case life and more consistent tension round to round, which is exactly what matters when you're chasing tight groups.

Where the .363 Redding Bushing Fits

Redding neck bushings all share the same outside dimensions, 1/2 inch O.D. by 3/8 inch long, so they drop freely into any Redding bushing-style neck sizing die and self center as the ram comes up. The .363 size falls into the larger end of the lineup, which puts it in reach of bigger bore cartridges. Every bushing is clearly marked with its size, so there's no guessing which one you grabbed off the bench.

What the Titanium Nitride Coating Does

The base of this bushing is heat treated steel, hand polished to a surface hardness in the Rc 60 to 62 range. The Titanium Nitride treatment goes a step further, pushing the effective surface hardness up around Rc 85 and cutting down the friction between brass and bushing. In practice that means a smoother, lighter stroke on the press and a bushing that holds its dimensions over a long reloading life.

Picking the Right Redding Bushing Size

Getting the size right is the whole point. The common method is to measure the outside neck diameter of a loaded round with a good micrometer, then subtract about .001 to .002 inches to account for brass springback and the tension you want on the bullet. Redding offers these in .001 inch steps across the range, so a lot of handloaders keep two or three sizes on hand to tune their loads. If you neck turn your brass, the bushing system also lets you skip the expander ball entirely.