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12 Gauge Shell Holder 3D Printer File Image 1
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12 Gauge Shell Holder

Lil_Snug avatarLil_Snug

January 8, 2026

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Description

This is a 12 Gauge Shell holder for the MTM Ammo cans:
https://www.amazon.com/dp/B01MU6ZAPG

Instead of a pile of rounds, you can fit some of these shell holders, each holding 28 shells. Keeps em all tight and easy to pull out a batch...

How many you can fit in a can depends on the length of shells.

Honestly, its cute and fun, but 12g shells are fine just chilling in the can... you can fit about 110 2.75" rounds in the can, but only 84 with the holders... I mean, there is a bit of room left to drop some loose rounds in aswell, so total capacity is the same but... idk if its really worth it for ya.

UPDATE: Seems yall enjoyed this lil project, so I added a few more models.
One model does not have the flare out at the top. Its got flat sides, so hopefully it can fit in other cans, but has the same tapered slope as the original.
The last two are rectangular, no taper at all, one is similar in size while the other is more narrow, holds less, only 24, but at 79mm, should fit in the metal ammo cans.

License:

Creative Commons - Attribution - Non-Commercial - Share Alike

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