Clarification of Gun Terms: Semi-automatic, Assault, Machine gun
Many news reports and programs equate "semi-automatic" with "assault" guns. People are led to believe that a semi-automatic can shoot several rounds per second. We hear news commentators calling for a ban of semi-automatic weapons.
Federal Assault Weapons Ban: “Semi-automatic firearms, when fired, automatically extract the spent cartridge casing and load the next cartridge into the chamber, ready to fire again. They do not fire automatically like a machine gun.”
Probably most hunting guns are semi-automatic, requiring a separate trigger pull for each round; that doesn't make them assault weapons. Of course, a victim can reasonably claim “assault” even if only one shot is fired at them (assault: a crime that involves causing a victim to apprehend violence).
“Assault weapon (semi-automatic) refers primarily (but not exclusively) to firearms that possess the cosmetic features of an assault rifle (which are fully-automatic). Actually possessing the operational features, such as 'full-auto', changes the classification from an assault weapon to a Class 3 weapon. Merely the possession of cosmetic features is enough to warrant such classification as an assault weapon.”
If a weapon has certain cosmetic features of an assault rifle (e.g. pistol grip, high capacity magazine etc ) it’s classified as an assault weapon.
Note that fully-automatic operation (hold trigger - several rounds per second) is not an assault weapon but a Class 3 weapon (e.g. machine gun) regulated by National Firearms Act).
What if a semi-automatic gun has not only cosmetic features, but also operates as a Class 3 rifle?
A popular conversion product provides that:
It's approved by BATF:
Apparently the product is “OK” because the operator controls the action.
This weapon provides an advantage; but may be less accurate / continual auto may damage barrel.