| 1. | The barrel was changed easily, but the gas ports had to be enlarged considerably.
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| 2. | Their gas ports or operating system are also welded closed.
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| 3. | Grease blobs and spider webs can clog the small gas ports in the burner tubes.
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| 4. | The size of the gas port increases resulting in greater energy being delivered to the action.
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| 5. | The gas port is opened from 0.062 to 0.070 in ( 1.6 to 1.8 mm ).
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| 6. | The chief complaint of the rifle was that the gas ports quickly fouled when using lead ammunition.
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| 7. | This sleeve opened a series of gas ports which bled off exhaust gases and so determined the range.
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| 8. | The gas system is fed from an adjustable gas port 11 inches from the rear of the barrel.
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| 9. | The weak point of this rifle was the size of the gas port located under the front end of the barrel.
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| 10. | Gas is tapped from the barrel as the bullet moves past a gas port located above the rifle's front sight base.
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