1. What happens to bullets when they are fired? bsapp.com

2. Pull the Trigger and... 1.A pin or hammer strikes the primer. This causes a spark. 2.The powder is then ignited causing an explosion. 3.This explosion starts the bullet down the barrel of the gun bsapp.com

3. Down the Barrel 4.As a bullet travels down the barrel of a gun it is twisted by the lands and grooves of the barrel. bsapp.com

4. Out of the Barrel 5.This rifling causes the bullet to exit the end of the barrel in a spiral motion; stabilizing the round bsapp.com

5. Do all guns have rifling? Most weapons do have rifling Most weapons do have rifling Shot guns do not Shot guns do not Small shotgun pellets would not be affected by rifling Small shotgun pellets would not be affected by rifling

6. The Flash Burning of powder gases Burning of powder gases

7. Effect of a Gunshot In general - Residue tends to spread out more as the distance between muzzle and target increases In general - Residue tends to spread out more as the distance between muzzle and target increases

8. Specifically Zero distanceFiber – burns and/or melts Skin – burns or bruises, exploded body cavities 12 – 18 inches or lessHalo of smoke deposited around bullet hole Approx. 19 – 25 inchesScattered specks of unburned/partially burned gunpowder – no soot 3 feet or more from targetNo gunpowder residue

9. What happens to a bullet when it hits a target? Most bullets tend to mushroom when they hit a target.Most bullets tend to mushroom when they hit a target. Some bullets nearly disintegrate.Some bullets nearly disintegrate. Left are bullet fragments from a ½ jacketed hollow point.Left are bullet fragments from a ½ jacketed hollow point. bsapp.com

10. Not all bullets mushroom the same. A lot depends on the speed and shape of the bullet, and the characteristics of the target. bsapp.com

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12. Some more bullets recovered after firing The striations from the rifling are still visible bsapp.com