Universal 3D Ammo Box STL

I need a complete set of STL files that will let me 3-D print ammunition boxes holding exactly 100 rounds each. The design has to cover handgun, rifle, and shotgun cartridges, so either one fully-parametric model or separate size-specific files for the major calibers is fine as long as every version ends up printer-ready.

Key points I have in mind
• Lid must close securely—snap latch, hinge, or another simple mechanism that can be printed in one job without extra hardware.
• Interior grid keeps rounds separated and stops rattling; please allow for typical FDM tolerances.
• Exterior walls thick enough for durability yet still lightweight, with a flat area where I can add caliber labels.
• Boxes should stack neatly.

Deliverables
1. STL files for each caliber or one parametric master.
2. An editable CAD source file (STEP, Fusion 360, or SolidWorks) so I can tweak dimensions later.
3. A short print-setup note listing recommended layer height, infill, and any support strategy.

Everything has to be wrapped up within a month, and I’ll test-print as soon as I receive the first file set so we can make any quick adjustments before final hand-off.
Caliber label printed in the lid .
Editable box on lid for customer names
A few pictures added as the type of style.