What calibre is the RCBS Shell Holder #21 specifically designed to accommodate?

The RCBS Shell Holder #21 is specifically engineered for reloading .303 Savage ammunition. It features a precise case head capture of 0.125 inches (3.175 mm) to securely grip the .303 Savage rim and maintain proper SAAMI headspacing. Attempting to use this shell holder with other calibres can lead to slipped rims or unsafe reloading conditions.

Is this shell holder compatible with progressive reloading presses or multi-station auto-loaders?

No, the RCBS Shell Holder #21 is designed exclusively for single-stage presses, turret presses, and compatible hand-priming tools like the RCBS Automatic Priming Tool. Progressive or multi-station auto-loading presses require a dedicated multi-position shell plate rather than a single-stage shell holder.

Are there any electrical compliance certifications or SAA approvals required for this product in Australia?

No electrical certifications are required for the RCBS Shell Holder #21. Because this is a purely mechanical, non-powered reloading accessory manufactured from hardened steel, electrical standards such as 240V mains compatibility, SAA approvals, and RCM certifications are completely inapplicable.

How do I install the RCBS Shell Holder #21 into my reloading press?

The shell holder easily snaps into the ram of standard single-stage and turret presses using the built-in spring clip channel. This retention system allows the shell holder to rotate freely according to your preference during operation while securely preventing accidental displacement from the press ram.

RCBS R9221 Shell Holder 21 - RCBS R9221

The RCBS Shell Holder #21 (Model R9221) is a precision-machined mechanical reloading accessory engineered to secure and align cartridge cases during the metallic cartridge reloading process. Manufactured from high-grade, heat-treated hardened steel, this shell holder is built to withstand heavy reloading pressures without flexing or wearing over a lifetime of use. It is specifically designed to fit the .303 Savage cartridge case head, capturing exactly 0.125 inches (3.175 mm) of the rim to maintain proper SAAMI headspacing and precise alignment with the reloading die. As a purely mechanical, non-powered tool, it operates without electrical requirements, making it fully compatible with standard Australian reloading setups without requiring regulatory compliance marks like the RCM or SAA certification.

Key Features

Hardened Steel Construction: Fabricated from heat-treated steel to resist physical deformation and wear under heavy mechanical reloading forces.
Precise Headspace Control: Rigorously machined to slide over the case rim and capture exactly 0.125 inches (3.175 mm) of the case head, maintaining critical longitudinal alignment.
Spring Clip Channel: Features a built-in channel that snaps securely into standard press rams, allowing the user to rotate the shell holder to their preferred orientation while preventing accidental displacement.
Broad Press Compatibility: Fits standard universal press rams on most single-stage and turret presses, including the RCBS Rock Chucker and RCBS Summit.
Priming Tool Integration: Compatible with specific manual priming hardware, including the RCBS Hand Priming Tool and Auto Priming Tool.

Product Specifications

Brand: RCBS
Model Number: R9221 (also listed as 09221)
Compatible Calibre: .303 Savage
Case Head Capture Height: 0.125 inches (3.175 mm)
Shipping Weight: 0.14 lbs (approximately 63 grams)
Power Requirements: None (manual mechanical operation)

Who is the RCBS Shell Holder # 21 for?

Reloaders loading .303 Savage ammunition — requires a dedicated reloading press shell holder machined specifically to capture exactly 0.125 inches (3.175 mm) of the cartridge case head, ensuring precise SAAMI headspacing and exact cartridge alignment during resizing and priming operations.

Less suitable for: Reloaders processing cartridge calibres other than the .303 Savage, or those utilizing progressive or multi-station auto-loading presses which require a multi-position shell plate rather than a single-stage shell holder.

SKU	RC39290LP
Model #	R9221
Brand	Rcbs
Shipping Weight	1.0000kg

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Rcbs R9221 Shell Holder 21 For 303 Savage Reloading Press

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