These Neck Sizer Dies use precision-machined neck bushings (sold separately) to size the case neck just enough provide the exact amount of bullet tension without overworking the brass. To determine the proper neck bushing size, measure the outside neck diameter of a loaded cartridge and subtract .002" to .003" to allow for a small amount of brass spring back. Shellholder sold separately.
Material: Polished and Heat Treated Steel
Die Types Included:
Neck Sizer Die (with expander-decapping unit)
Plastic Storage Case
Gold Medal Match sizing dies use a separate neck bushing
Neck bushing is not included
To determine bushing size, measure the outside neck diameter of a loaded cartridge, subtract .002" to .003" -- this allows approximately .001" of brass spring back for correct neck tension. Another method is to measure the neck wall thickness of a case, multiply by two, add the diameter of the bullet and subtract .001" -- RCBS suggests purchasing neck bushings one to two sizes above and below the target diameter.
Neck Sizer Dies size only the neck of the case (NOT the shoulder or body) just enough to snugly hold the bullet for extended case life and accuracy
Lifetime Guarantee from RCBS
Shellholder not included.
Gold Medal Match bushing dies will accept bushings made by Hornady, Redding or Wilson in addition to RCBS bushings.
For more information on RCBS Gold Medal Match Series Dies, please click the link below: Product Information
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