RCBS Neck Sizer Die – 300 Winchester Magnum is an RCBS neck-sizing die for Neck – 300 Winchester Magnum. It sizes the case neck while leaving most of the case body unchanged, making it useful for brass being reused in the same compatible firearm.
- Product type: Neck-sizing die
- Cartridge: Neck – 300 Winchester Magnum
- Sizes the case neck only