What is the difference between bolt action and semi action?

Answer 1

The bolt is manually operated in a bolt action firearm- to load, raise the bolt, retract, push forward chambering a round, and lower bolt handle to lock. Semi-automatic firearms have a bolt, but pulling back the bolt handle, and releasing it causes a round to chamber- and each shot causes the bolt to move on its own, ejecting the fired cartridge case, and loading another cartridge. You do not work the bolt between shots- the gun works the bolt for you.