RCBS Neck Sizer Die Bushing 364 Diameter Steel
- Nosler Custom Reloading Brass 338 Lapua Magnum Box of 25... $50.51 Available
- RCBS Neck Sizer Die Bushing 363 Diameter Tungsten Disulfide... $24.99 Available
- RCBS Gold Medal Match Series Bushing Neck Sizer Die 338 Lapua... $54.99 Available
- RCBS Neck Sizer Die Bushing 362 Diameter Steel... $11.99 Available
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.