After the Section Chief announces 'I SEE RED', Cannoneer #2 closes the breech utilizing which component, and ensures witness marks are aligned?

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Multiple Choice

After the Section Chief announces 'I SEE RED', Cannoneer #2 closes the breech utilizing which component, and ensures witness marks are aligned?

Closing the breech is done with the breech lever. When the command is given, Cannoneer #2 moves the breech lever to bring the breech block into contact with the chamber and lock it in place, which also brings the witness marks into proper alignment. That alignment confirms the breech is fully closed and sealed, ready for firing. The breech block itself is the part that seals the chamber, but it only becomes effective when the lever locks it; the lever provides the actual closing action. The loading tray lever is used for feeding rounds and does not lock the breech, and the breech pin is merely a fastener rather than the mechanism that seals and aligns the closure.

Closing the breech is done with the breech lever. When the command is given, Cannoneer #2 moves the breech lever to bring the breech block into contact with the chamber and lock it in place, which also brings the witness marks into proper alignment. That alignment confirms the breech is fully closed and sealed, ready for firing. The breech block itself is the part that seals the chamber, but it only becomes effective when the lever locks it; the lever provides the actual closing action. The loading tray lever is used for feeding rounds and does not lock the breech, and the breech pin is merely a fastener rather than the mechanism that seals and aligns the closure.

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