Bump fire

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Bump firing is the simulated automatic firing of a semi-automatic weapon, usually a rifle.

The easiest way to bump fire is from the hip, although this results in bad accuracy. Experienced practitioners are often able to produce reasonably accurate results bump firing from the shoulder. Bump fire tends to be much less accurate and controllable than mechanical fully automatic fire.

For example, one method of "bump firing" is to hold the rifle with your off-hand (non trigger hand) and instead of gripping it with the trigger hand, only insert your finger in front of the trigger. In order to achieve the rapid fire succession, the shooter continuously pulls the rifle forward with the off-hand while holding the trigger finger stationary such that the trigger is pulled into your finger. The recoil will pull the rifle backwards as you are pulling it forwards. A new round will be chambered before you pull the rifle back into your stationary trigger finger.