| 21. | When a gun is fired, it creates a unique mark on the bullet and the shell casing.
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| 22. | Using a roll-crimp was simply the easiest way to close a shotgun shell case at the time.
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| 23. | The spent shell case section was thoroughly ventilated and muzzle brakes were introduced to successfully cure the problem.
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| 24. | The 9mm shell casing was removed, apparently by the killer, and tossed into a neighbor's driveway, Pieke said.
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| 25. | Sasha's ashes were returned on the same flight in a brass shell case engraved with her name and details.
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| 26. | This early design eventually evolved into an advanced laminating technique which is referred to today as Single-shell casing technology.
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| 27. | Earlier Saturday, authorities tested a shell casing found in a white rental truck for links to the sniper attacks.
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| 28. | A single shell casing is found in a wooded ravine behind the home, in a suburb of Hamilton, Ont.
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| 29. | Burr finds a 9mm shell casing at the scene, which conflicts with the bullet type found in Eckhart's body.
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| 30. | During runout the breech is opened and an empty shell casing ejected; the breech then remains open for reloading.
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