RCBS .300 Norma Mag Neck-B Sizer Die

.300 Norma Mag Neck-B Sizer Die by RCBS carries the RCBS .300 Norma Mag Neck-B Sizer Die. The .300 Norma Mag Neck-B Sizer Die features an Expander-Decapping Unit. It resizes the case neck only (it doesn’t touch the shoulder or body) and de-primes. The Full-Length Sizer Die brings the case to SAAMI minimum cartridge dimensions. It sizes the outside of the case and de-primes and expands the neck to accept the bullet. The die has vents to prevent case damage caused by trapped air and for excessive lubricant. Headspace is held to minimum tolerances to avoid changing the case body length during full length sizing.

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