What specific cartridge is the Hornady #20 Shell Holder (Model 390560) designed for?

This shell holder is specifically engineered for the 6.5x54mm Mannlicher-Schoenauer cartridge, featuring a precise fit for its unique rim diameter of approximately 11.53 mm (0.454 in). It is not compatible with standard rimless or belted magnum cartridges, which require different Hornady numbers such as the #1 or #5.

Will this shell holder fit reloading presses from brands other than Hornady?

Yes, the #20 shell holder is built to standard universal 'T-slot' dimensions, making it fully compatible with virtually all single-stage and turret reloading presses from major brands like RCBS, Lyman, Redding, and Lee. It also works seamlessly with Hornady accessories such as the Cam-Lock Case Trimmer and Hand-Held Priming Tool.

Can I use this shell holder in a progressive multi-station reloading press?

No, this is a single-stage style shell holder designed to hold one cartridge case at a time in standard single-stage or turret presses. For high-volume progressive presses like the Hornady Lock-N-Load AP, you will need a dedicated multi-station shell plate instead.

What kind of maintenance is required to ensure this steel shell holder lasts in Australian workshop conditions?

Because it is precision-machined from solid heat-treated steel, it is built for a lifetime of heavy use under repetitive press strokes. To prevent surface rust in humid coastal or outback Australian workshop environments, simply wipe it down with a light coat of standard gun or machine oil before long-term storage.

Reloading Shell Holder - Hornady 390560

The Hornady #20 Universal Shell Holder (Model: 390560) is a precision-machined steel reloading tool engineered to secure cartridge cases during sizing, depriming, and bullet seating. Machined from solid, heat-treated steel, it provides a precise mechanical fit for cartridge cases featuring an 11.53 mm (0.454 in) rim diameter profile. Designed with a standard universal T-slot footprint, this shell holder fits standard single-stage and turret press rams across major reloading brands, as well as compatible handheld priming tools and bench trimmers.

Key Features

Precision Machined Steel: Manufactured from heat-treated solid steel to withstand continuous mechanical leverage during resizing and decapping without deforming.
Smooth Case Feeding: Features a radiused, wide-mouth entry slot designed to eliminate case rim hang-ups and facilitate rapid case insertion.
Universal Press Interface: Compatible with standard single-case press rams from Hornady, RCBS, Lyman, Redding, and Lee, weighing approximately 30 g to 45 g.
Single-Case Holding Capacity: Securely aligns one cartridge at a time for concentric reloading operations.

Specifications

Brand: Hornady
Model Number: 390560
Shell Holder Size: #20
Calibre Compatibility: 6.5x54mm Mannlicher-Schoenauer
Case Rim Diameter: 11.53 mm (0.454 in)
Material: Heat-treated solid machined steel
Capacity: Single cartridge case

Who is the Hornady Precision Shell Holder #20 for?

Handloaders reloading 6.5x54mm Mannlicher-Schoenauer ammunition — matches the exact 11.53 mm (0.454 in) rim diameter profile required to properly capture vintage metric cases in standard reloading press rams without rim slippage.
Collectors and hunters shooting vintage European sporting rifles — provides the precise case-holding tooling necessary to produce custom handloaded cartridges for classic rifles requiring cases with an 11.53 mm rim diameter.

Less suitable for: Reloading standard rimless cases (such as .308 Winchester) or magnum belted cases; handloaders working with these cartridges require a dedicated #1 or #5 shell holder, while users operating multi-station progressive presses require a dedicated multi-calibre shell plate.

SKU	HN102808LP
Model #	390560
Brand	Hornady
Shipping Weight	0.2000kg

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Hornady 390560 Shell Holder #20 Steel 6.5x54 Mannlicher

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