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Where a bullet is pushed through the barrel of a rifled firearm, spiralgrooves cut into the inside of the barrel (rifling) cause the bullet to spin. This provides for better accuracy- and at the same time, makes marks (striations) on the bullet. A shotgun does not have those grooves, and does not produce striations on the projectile.
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What determines the pattern of marks on a bullet?
Marks, or striations on a bullet are made from the bullet running against the metal of the gun. The barrel of the gun determines whether the bullet curves to the left or right.
What did Alexandre Lacassagne do in 1889 with the field of Ballistics?
He was the first person to match a bullet and a firearm with striations.
What are bullet striations?
The scratch marks left on the proyectile by the rifling lines of the inside of the bore (barrel).
Does a 22 caliber bullet leave striation marks?
When a bullet is fired through a rifled barrel, the lands and grooves of the rifling make marks on the bullet. These marks are called striations, and can be used to match a bullet to the gun that fired it. That DOES include .22 caliber bullets. However, .22LR ammo has a soft lead bullet- if it strikes a hard surface, it may be so badly damaged that the striations are obliterated.
What are bullet characteristics and why are they useful in matching a bullet to a gun?
The first characteristics are size, shape and weight of the bullet, since that will direct attention towards a given group of firearms- a bullet is about .357 inches in diameter we know was NOT fired from a .22 or a .45. Next are the marks engraved on the surface of the bullet by the rifling of the gun. Those marks, known as striations, can help narrow our search for the type of gun. The number of marks, and the direction and rate of twist are key. Finally the striations have microscopic marks. Those can be matched to the only gun that will produce identical striations.
Where can you locate stripping marks on fired bullet?
The stripes of the lands and grooves will be on the sides of the bullet. If the bullet is "stripping" through the rifling of the gun, the striations (proper name for the rifling marks) will be smeared.
Can you take a bullet shot out of one rifle and match it with a bullet shot out of a nother rifle.?
When a bullet is fired from a rifle or pistol, it has markings impressed on it from being pushed through the rifling in the barrel. These marks, known as striations, are unique to each gun, much as fingerprints are unique. The striations made by two different rifles will NOT be the same. Similar, but under a microscope, different.
How do you determine the caliber and type of firearms from which it was fired?
Assuming you refer to a fired bullet, you would examine the bullet- measure it's diameter, length, weigh it, and compare those to known specimens. You would also examine the bullet for striations- markings made by the rifling inside the barrel. The number and direction of twist of the striations may indicate a particular make of firearm.
What are the scratches left behind from glaciers called?
striations
When was Riding the Bullet created?
Riding the Bullet was created in 2000.
When was Bullet for My Valentine created?
Bullet for My Valentine was created in 1998.
When was Bullet in the Flesh created?
Bullet in the Flesh was created in 1965.
