WHAT 18 & JAN, AND WHY DOE SIT HAPPEN? A Jammed gun is one that doss not fire & BB when iris spaded, cocked and the tiger is pulled. It is & dangerous condition which must have Immediate and careful attention, Jamming can result from: . Improper fading-turning tha gun on s side as the muzzle i raised to goad & BB Info fining position. 2. Reusing shot which hae bean damaged by hitting & hard starter. 3, Using ammunition not intended for BB gun use, 4. Using dirty shot.