AIRGUN AMMO BOX
Storage box and pellet dispenser for airgun ammunition.
Holds 72 pellets plus eight 12 round magazines or 72 pellets, four 12 round magazines and a tool box.
Magazine storage designed around a Remington Airacobra caliber.177.
Designed to be mounted to my DIY rifle stand via quick release mounts the box provides storage for spare magazines and easy access to 72 pellets for reloading.
Pics below show the box fitted to my Rifle Stand.
Designed for a Remington Airacobra, my rifle stand and for .177 pellets, I have enclosed the FreeCAD files it can be modified to suit any use.
There is plenty of space below the rifle to access the pellets or spare magazines with a rifle mounted on the stand.
Parts
The box is a cheap wooden box from Amazon
I have stained it to make it darker and 3D printed a set of catches to go with a hold down clamp I had in my workshop.
The boxholderClamp below fits onto the hold down in place of the rubber stop.
The boxholderClamp bolted to the hold down.
With the red hold down lever down the box is locked in place.
With the red hold down lever raised the box is now free to move.
Sliding the box towards the lock down frees it from the boxholderSocket at the other end.
boxholderSocket
The box can now be removed.
There are 2 boxclipClampends one on each end of the box.
These sit in the boxholderSocket one end and the hold down boxholderClamp the other.
Pellet holder construction
The pellet holder is made from Neoprene and is cut from an old exercise mat.
The neoprene is first cut to the size of the box lid opening with a craft knife.
The pellets require holes punched (use a leather punch) in the Neoprene to hold them in place upside down when the lid is shut.
I use .177 pellets and I found a 3mm leather punch made a perfect size hole to grip the pellet head.
My Neoprene is quite deep so I 3D printed a pad of spacers to hold the pellets at the correct distance in the neoprene.
3D printed spacers sit below the Neoprene to stop the pellets being inserted too deeply into the neoprene.
pelletHolderPAD
In order to cut hole in the correct location I 3D printed a punching template.
The holes are just big enough to take the punch body.
pelletHolderPocket
When punching the holes I found the Neoprene tended to move so I knocked up a template jig out of scrap wood.
The template jig ready for the next bit of Neoprene.
The template jig with Neoprene inserted.
The punching template is then inserted on top of the Neoprene and holes are punched 1 by 1.
Completed Neoprene ready for insertion into the lid on top of the 3D printer spacers.
Magazine/Tool & Spares Holder Construction
The main box holds spare loaded magazines and can be configured to hold spare O rings, Allen keys etc etc in a small 3 D printed box.
The magazines and box are held in place with two layers of Neoprene.
I have made 2 sets of Cutout templates each set comprising a upper and lower template. The is to accommodate the curve in the magazine.
The Neopene is cut using the cutout template inserted over the Neoprene both inside the wooden template jig as per the pellet holder above.
Blank Neoprene inside template jig.
Cutout template inserted ready for cutting Neoprene.
Tool/Spares box and 4 magazine cutout template
cutouts4mags_upper
cutouts4mags_lower
8 Magazine cutout template
cutouts8mags_upper
cutouts8mags_lower
Tool/Spares Inner Box
If the 4 magazine version is used then threre is space for the 3D printed tool/spares box.
The simple box with lid is held in place by a Neoprene cut out.
box_lid
box_inner
Download 3D files