Forster neck bushings allow shooters to resize case necks to their exact requirements in a Forster Bushing Bump Neck Sizer Die. The Bush-307 neck bushing is engineered specifically for precision reloading, offering a 0.307-inch sizing diameter for custom neck control. Forster uses a super-cooling cryogenic process to produce an ultra smooth bushing which produces better loaded rounds. Cryogenically treated steel produces filler particles that refine and close the steel’s surface. Bushings are heat treated and honed to the precise inside diameter stated.
Interchangeable bushings are available in 0.001 in. increments to enable custom neck sizing and fine adjustments for case neck wall thickness. This compatibility with Forster Bushing Bump Neck Sizing Dies makes the Bush-307 an essential component for handloaders seeking to optimize bullet tension and concentricity. Forster neck bushings are machined to a superior interior finish for “smooth as silk” neck sizing. The bushing used here relies less on the chamber of the rifle and more on the wall thickness of brass being used. It is this wall thick that determines how far down the bushing needs to size in order to have proper neck tension.
