Ditto above...
You can crimp bullets that don't have the cannelure groove, but you don't have to.
The reason they state that you have to crimp rounds for semi-autos is because light neck tension can cause the bullet to move when it is seated into the chamber by the cycling of the action by either compacting when feeding or the bullet being forced forward out of the case mouth when case impacts the chamber.
If you have proper neck tension from your resizing die, this isn't typically an issue. I personally don't crimp any of my AR loads.
Crimping can help consistency and help keep out moisture if you are storing the loads indefinitely or are in wet, submerged, or rainy environments. But crimping can also increase the pressure of the load so be wary with near maximum loads.
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Ferrari F399 Specifications
Threaded Mode