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303 cartridge reloading tray (updated) 3D Printer File Image 1
303 cartridge reloading tray (updated) 3D Printer File Image 2
303 cartridge reloading tray (updated) 3D Printer File Image 3
303 cartridge reloading tray (updated) 3D Printer File Image 4
303 cartridge reloading tray (updated) 3D Printer File Image 5
303 cartridge reloading tray (updated) 3D Printer File Thumbnail 1
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303 cartridge reloading tray (updated) 3D Printer File Thumbnail 3
303 cartridge reloading tray (updated) 3D Printer File Thumbnail 4
303 cartridge reloading tray (updated) 3D Printer File Thumbnail 5

303 cartridge reloading tray (updated)

Geoff avatarGeoff

October 30, 2025

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Description

A tray to hold 25x .303 (or smaller) cartridges with heaps of space for filling & an optional front tray for keeping everything organised while you do. Includes 8mm holes in both ends for hanging, or for latching to the workbench for stability.

Updated version:

  • Front tray doubled in size and split to 2nd independent optional print
  • Walls thickened to improve durability
  • Mounting holes included in model rather than slicer modifiers so can use in any slicer now
  • Front tray mount requires 3x M3 screws & M3 heat set threaded inserts. I used 5.7mm long inserts and 8mm black M3 screws in the above print

Photos show it printed in eSun PLA yellow and black. To get the floor and sides in a contrasting colour, insert a filament change at 2.2mm height. No supports needed

License:

Creative Commons — Attribution — Noncommercial

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