Product Overview
>>For use with RCBS gold medal match series dies. Works in both the full length and neck sizing styles. >>Neck bushing size (RCBS instructions): <>Proper neck bushing size can be determined two ways <>Measure the outside neck diameter of your loaded cartridge, subtract .002" to .003" - this allows approximately .001" of brass spring back for correct neck tension <>The other is to measure the neck wall thickness of your case, multiply by two, add the diameter of your bullet and subtract .001" <>RCBS suggests that you have neck bushings one to two sizes above and below your target diameter >>Notes: <>Redding, Wilson and Hornady bushings may also be used in RCBS Gold Medal bushing dies.
