What works the action of a semi-automatic firearm after each shot?

The recoil and gas from the fired cartridge.

  1. Recoil and gas from the fired round ✔
  2. The shooter sliding the forend
  3. A lever below the grip

Why: After a shot, the bolt slides back, ejects the empty case and feeds the next round. Each squeeze of the trigger fires one round. When the magazine is empty, the action locks open.

Huh, didn't know that: Because the action absorbs some energy, a semi-automatic shotgun has less felt recoil than a pump.

The dad joke
Why did the semi-automatic get a gold star? It always did its own homework.
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Sources

  1. TPWD Hunter Education, Common Firearms https://tpwd.texas.gov/education/hunter-education/online-course/firearms-and-ammunition-1/common-firearms
  2. CT DEEP Hunter Safety Exam Answer Key https://portal.ct.gov/-/media/DEEP/hunting_trapping/pdf_files/Hunter_Safety_Manual/ExamAnswerKey.pdf?la=en

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