Titanium Nitride surface treatment to increase the effective surface hardness and reduce sizing fric
Heat treated steel with the addition of a Titanium Nitride surface treatment to further increase the effective surface hardness and reduce sizing friction Redding Neck Sizing Bushings are available in two styles. Both share the same external dimensions 1/2" O. D. x 3/8" longand freely interchange in all Redding Bushing style Neck Sizing Dies They are available in . 001" size increments throughout the range of . 185" thru . 368", covering all calibers from . 17 to . 338 and clearly marked with size I. D By selecting the correct bushing, you are now able to provide just the right amount of neck tension to properly hold the bullet without excessive resizing.