This is a remodel from MortalWombat's Better Ammo Boxes! He's got really great designs for Ammo Boxes for Calibers he has on hand. Unfortunately, he didn't have any .308 so I took his 300 Black Out ammo box and scaled it up to 125% and changed the lettering on the top of the sleeve from 300BLK to .308.
The author remixed this model.
I took the file for the 300 Black Out Ammo Box and scaled it up to 125%, removed the letters for 300 Black Out and added in .308 to the box. Fits a standard .308 cartridge now.