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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.

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Striation marks


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.


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.


How can you trace a criminal by a bullet?

When a bullet is fired from a rifled firearm, the rifling leaves marks on the bullet. Those marks are unique to that gun, and no other gun makes exactly the same marks. If a bullet (or fired cartridge casing) is recovered from a crime scene, and we suspect that YOUR gun was used to commit this crime, then a sample bullet is fired from your gun, and compared to the crime scene bullet. A comparison microscope is used to compare the bullets, or marks made on the fired cartridge case by the extractor and firing pin.


What are bunter marks?

Bunter marks are the marks produced by a bunter, or head-stamping, tool when the bullet is manufactured. This tool imprints the manufacturer's name and bullet's calibre on the cartridge casing. It is possible to match bunter marks and determine which bunter made them.


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.


Do a .38 special revolver have bullets marks after it left the barrel?

A bullet that has left the barrel has marks left from its travel down the barrel.


What markings on a fired bullet are compared microscopically?

hash marks or lines running parallel with the casing, caused by the inside of the barrel of the gun as the bullet travels out when fired


Do you know what kind of animal could leave bear scratch marks on a tree?

Yes, bears are known to leave scratch marks on trees.


Do you know why bears leave marks on trees?

Bears leave marks on trees to communicate with other bears, mark their territory, and sharpen their claws.


How do you read the date on a 25 caliber rigarmi pistol?

Do a Google search on Italian proof marks.


What are symbols on the barrel of rifle stand for?

Caliber, maker, serial number, proof marks, etc..