The Hornady Precision Machined Steel Shell Holder Kit (Model 390540) is a 5-piece assortment engineered to secure cartridge cases rigidly to standard slotted press rams and bench tools during resizing, depriming, and priming operations. Precision-machined from solid steel and heat-treated to resist mechanical deformation under heavy press leverage, each shell holder features a wide mouth with a radiused entry edge for smooth, snag-free case insertion. This kit fits standard single-stage and turret reloading presses across major manufacturers, as well as compatible manual bench accessories such as the Hornady Cam-Lock Case Trimmer and Hand-Held Priming Tool.

Key Features

• Comprehensive 5-Piece Assortment: Contains sizes #1, #2, #5, #16, and #35 to accommodate over 75 popular rifle and handgun cartridges.
• Heat-Treated Solid Steel Construction: Precision-machined to resist wear and dimensional distortion under high ram pressures.
• Radiused Mouth Profile: Designed with a subtle radius at the entry edge to facilitate fast, smooth cartridge case feeding.
• Universal Ram Compatibility: Conforms to industry-standard slotted-ram dimensions on single-stage and turret reloading presses.
• Manual Tool Integration: Interfaces directly with manual case trimmers and hand priming tools requiring standard snap-in shell holders.

Specifications

• Model / MPN: 390540
• Included Sizes: #1, #2, #5, #16, #35
• Material: Heat-treated, precision-machined solid steel
• Packaged Weight: Approximately 140–180 g
• Cartridge Coverage: Over 75 rifle and handgun calibres (including .308 Win, .30-06, .223 Rem, .300 Win Mag, .30-30 Win, and 6.5x55mm)
• Tool Compatibility: Universal slotted press rams, Hornady Cam-Lock Case Trimmer, and Hornady Hand-Held Priming Tool
• Power Requirements: None (manual reloading equipment)

Who is the Hornady 390540 Precision Machined Steel Shell Holder Kit For Reloading for?

• Handloaders reloading rifle and handgun cartridges across multiple calibres using standard single-stage or turret presses — provides a reloading shell holder kit with universal slotted-ram compatibility to support over 75 cartridge types across sizes #1, #2, #5, #16, and #35.
• Reloaders processing mixed-calibre batches spanning standard rifle cases, belted magnums, and .223 Remington families — consolidates high-frequency tooling into a single 140–180 g boxed kit covering standard .473-inch case heads (#1), rimmed rifle cases (#2), belted magnums (#5), .223-class cartridges (#16), and European case heads (#35).

Less suitable for: Progressive press setups requiring multi-station rotating shell plates, or reloaders working with calibres outside the 5 included sizes (such as .50 BMG, .338 Lapua Magnum, .416 Rigby, .45-70 Government, or 9mm Luger), who require dedicated individual specialty shell holders or calibre-specific progressive shell plates.