| 31. | I watched four 23mm gun barrels spit fire at us.
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| 32. | Its gun barrel has been lengthened with a metal extension.
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| 33. | This acid would erode the inside of the gun barrel and the lock mechanism.
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| 34. | The bore riders fell free as soon as the dart exited the gun barrel.
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| 35. | Three men and a woman are looking down the gun barrel of middle age.
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| 36. | The highway begins at a junction with Gun Barrel City.
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| 37. | Standing alongside the scud minarets are several others that look like machine gun barrels.
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| 38. | It has provided inexpensive, accurate measurement of stresses on aircraft components and gun barrels.
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| 39. | The blast creates swirls of white smoke, just like puffs from a gun barrel.
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| 40. | Gun barrels with a length of up to were tested.
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