The RCBS Neck Sizing Bushing at .336 inch diameter (brand part no. 81651) from RCBS lets handloaders dial in exact case neck tension in a bushing-style sizing die rather than relying on a fixed, one-size neck expander. Swapping bushings by diameter is how precision reloaders fine-tune bullet grip and concentricity for a specific rifle and load combination. It is a small, precisely machined part built to be interchanged with other RCBS bushings as needed.

Key Specifications

• .336 inch diameter sizes the case neck to this exact dimension.
• Bushing-style neck sizing lets you fine-tune neck tension instead of using a fixed expander.
• Interchangeable with other RCBS bushings to dial in the right fit for your load.
• Light shipping weight of 0.02 lb reflects its small, precise machined size.

Frequently Asked Questions

What is a neck sizing bushing used for? It sizes the case neck to a precise diameter, letting you control bullet neck tension in a bushing-style die.

What diameter is this bushing? .336 inch.

Buy the RCBS Neck Sizing Bushing, .336 in Diameter

Fine-tune your neck tension with a precise .336 inch RCBS bushing. Order it from our Lubbock, Texas gun shop for fast shipping, and shop the rest of our shellholders and die accessories.