Redding Neck Sizer Die Steel Bushing .290

Redding Neck Sizer Bushings freely interchange in all Redding Bushing-Style Sizing Dies. They are available in .001″ increments covering all calibers from 17 to 338. 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. All bushings are marked with size identification. To determine proper Bushing size, measure the outside neck diameter of a loaded cartridge with a precision micrometer, then subtract .001″ to .002″, to allow for brass spring back and bullet tension. Shellholder and dies sold separately. Made in the USA.

Steel bushings are heat treated steel. Redding bushings are hand polished with a surface hardness of Rc 60-62 to reduce sizing effort. Titanium Nitride bushing offer the same features as steel bushings, but also feature titanium nitride to further increase the surface hardness and reduce sizing friction.

Dimensions: 1/2″ O.D x 3/8″ long

Which Bushing is correct for my Bushing Die?

WITH A LOADED CARTRIDGE:
Step 1 – Measure the neck diameter (using a caliper or micrometer) of a loaded round that you have produced with the brass and bullet you plan to use.
Example: .292”

Step 2 – Subtract .002″
Example: .292” – .002” = .290” Bushing Size

Step 3 – Add that size to your order

For this example, a .290” Bushing would be a good starting point to obtain about .001” neck tension.
To obtain more neck tension a smaller size bushing would be needed.

NOTE: Measuring several loaded rounds and using the average is advisable.

WITH UNLOADED BRASS:
Step 1 – Measure neck thickness of your brass with a micrometer or caliper, and multiply it by 2 for a product.
Example: .014” x 2 = .028”.

Step 2 – Add your bullet diameter to the previous product, then subtract .001” for the proper neck bushing size.
Example: .264” + .028” = .292”, -.001” = .291” Bushing Size

Step 3 – Add that size to your order

For this example, a .291” Bushing would be a good starting point to obtain about .001” neck tension.
To obtain more neck tension a smaller size bushing would be needed.

NOTE: Ensure consistent neck thickness by neck turning your brass.