The j-20 series ammo case is a favorite of rifle enthusiasts throughout the world.It is made of indestructible polypropylene that will not warp crack chip peel expand or contract.Calibers: 17/221/223 rem. 17 fireball 17 mach 4 204 ruger 218 bee 222 rem.Mag. 300 aac blackout 300 sherwood 300 whisper 32 ideal 32 win.S.L. 350 legend 351 wsl 6x47 7.62x37 musang 6mm-223 rem. 7.62x37 musang 810 cadet.Type: Ammo BoxModel: J-20Finish: Clear RedSize: 17/221/223Material: PolypropyleneCapacity: 20rdDimensions: 2.35" OALHardware: None