NOZZLE- JERKY CANNON 3/8" STUFFING TUBE - 6 INCHES. For those of you who prefer your snack sticks in a casing, now it's easier than ever. Use this stainless steel 3/8" Jerky Cannon stuffing tube on your Jerky Cannon to hold the casings. The 3/8" nozzle accepts 19mm to 21mm collagen casings or natural casings.