| 1. | The spotting rifle is mounted on the right side of the launch tube.
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| 2. | The weapon is then in spotting rifle mode.
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| 3. | In some cases spotting rifles were used to confirm proper trajectory and range to a target.
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| 4. | The spotting rifles were used to line up the 106 mm recoilless rifles with the target.
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| 5. | The firing mechanism mechanically fires the spotting rifle and uses a magneto to fire the rocket.
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| 6. | The weapon consists of the launch tube, the spotting rifle, the firing mechanism and mounting brackets.
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| 7. | A US Ontos M50A1 Tank Destroyer, the 50-cal spotting rifles can be seen on the upper guns
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| 8. | The system can be used in conjunction with the AN / PEQ-4 aiming light in place of the spotting rifle.
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| 9. | The Ontos used six barrels with four spotting rifles; two without, to avoid making an already tall vehicle even higher.
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| 10. | Many photographs of the Ontos in service in Vietnam show it with only two of the spotting rifles installed in their mounts.
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