What happens to bullets when they are fired?

Slides:



Advertisements
Similar presentations
Firearms Notes Forensic Science.
Advertisements

the study of projectiles (bullets) and firearms
Firearms and Toolmarks
Firearms Identification Mr. Tomasevich Forensics.
Ballistics & Firearms.
Chapter 15 FIREARMS, TOOL MARKS, AND OTHER IMPRESSIONS
Firearms and Cartridges
Ballistics & Impressions
Firearms.
Ammunition bsapp.com. bsapp.com bsapp.com bsapp.com.
FIREARMS AND FIREARM INJURIES
Chapter 17 Ballistics By the end of this chapter you will be able to:
​ Hunting The Different Types Of Hunting. Bow have been around for a long time The first bow was a long bow – It was c shaped and most of the time was.
Firearms Identification Mr. Tomasevich Forensics.
Forensic Ballistics. What is Ballistics? Ballistics is the science that deals with the _________, behavior and effect of a projectile. Ballistics is the.
 Rifling-impressing of the inner surface of a gun barrel with spiral grooves. › Imparts spin to projectile to keep it on course › No two barrels have.
WARMUP How can impression evidence help us solve a crime? What are different types of impression evidence?
Impression Evidence Firearms Examination Tom Anderson.
1 What is ballistics? Give 3 examples of how ballistics is used in forensic science.
FIREARMS, TOOL MARKS, AND OTHER IMPRESSIONS
 Definition: any material that travels with the ability to injure  Energy is dependent on the velocity, mass, and distance traveled by projectile.
Chapter 17 Ballistics.
Ballistics YouTube - Bullets in Slowmo. Ballistics The study of Ballistics involves the: Comparison of bullets and cartridge cases. Knowledge of all types.
What are firearms?  A weapon, especially a pistol or rifle, capable of firing a projectile and using a highly flammable charge as a propellant.
Bullet ID Lab.  Macroscope mag 5-40X  Water tank to obtain the standards for the bullet.
How Do Guns Work? How do they produce evidence? When the trigger is pressed: The hammer drives the firing pin into the primer The primer ignites, which.
Bullet Analysis & Comparison bsapp.com. Bullets to Guns ► It is extremely difficult to convict some one of a murder without possession of the murder weapon.
Forensic Science: Fundamentals & Investigations, Chapter 17
Ballistics and Firearms
Fire Project HOW DID FIRE AFFECT THE EVOLUTION OF GUNPOWDER AND EVOLUTION OF BULLETS?
Hosted by Mrs. Koenig Looks Scary Big Shots Force of Nature Evidence
1 Introduction Ballistic evidence helps explain: o What type of firearm was used o The caliber of the bullet o The number of bullets fired o Where the.
What happens to bullets when they are fired? bsapp.com.
Firearms Identification. A discipline mainly concerned with determining whether a bullet or cartridge was fired by a particular weapon.
Cartridges Design The bullet, usually made of metal, is out front with the cartridge, holding the primer and propellant powders, behind. Change Your Life.
Firearms & Bullets.
1 What is ballistics? Give examples of how ballistics is used in forensic science.
Ballistics Intro to Firearms 1. Forensic Science: Fundamentals & Investigations, Chapter 17 2 Long Guns and Handguns o Long guns Rifles fire bullets Shotguns.
Ballistics. History of Gunpowder and Firearms The Chinese invented gunpowder over a thousand years ago using KNO 3, charcoal and sulfur. Muzzle-loading.
Firearms and Ballistics
Types of Firearms 1.Handguns (pistols) –Revolver –Semiautomatic 2.Rifles 3.Shotguns 4.Air or BB guns.
Chapter 15 FIREARMS, TOOL MARKS, AND OTHER IMPRESSIONS
FIREARMS, TOOL MARKS, AND OTHER IMPRESSIONS
Ballistics.
Forensic Science: Fundamentals & Investigations, Chapter 17
Bullet Trajectory Notes on page
Firearms Identification
Firearms & Tool Marks Forensic Science.
DECEMBER 8, 2015 EQ: How is bullet analysis & comparison used to identify weapons used to commit a crime? WARM-UP: (DC snipers news)
Ammunition bsapp.com.
Ammunition bsapp.com.
Chapter 17 Ballistics By the end of this chapter you will be able to:
Bullet Analysis & Comparison
Firearms and Cartridges
Firearms Identification Mr. Tomasevich Forensics.
ANALYZING FIREARMS EVIDENCE
HANDGUNS/FIREARMS By Brennon Sapp bsapp.com.
Firearm Identification
BALLISTICS.
Bullet ID Lab
Bullet Analysis & Comparison
What happens to bullets when they are fired?
Ammunition bsapp.com.
Ballistics practice quiz
Ammunition and Shell Casings
Forensic Firearm Identification, Ballistics, and Tool Marks
16-1 Bullet and Cartridge Comparison
Ammunition bsapp.com.
Firearms: Form, Function, and Physics
Ammunition bsapp.com.
Presentation transcript:

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

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

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

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

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

Not all bullets mushroom the same 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

bsapp.com

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