What is what must you check to make sure a bolt-action firearm is unloaded?

1. Visually inspect the chamber of the firearm: Open the bolt to visually inspect the chamber to ensure that there is no round present.

2. Check the magazine: Remove the magazine from the firearm and ensure that it is empty.

3. Lock the bolt back: Locking the bolt back will allow you to visually confirm that there is no round chambered in the firearm.

4. Perform a physical check: Run your fingers along the chamber and magazine well to ensure that there are no rounds present.

5. Double check: Once you have visually and physically confirmed that the firearm is unloaded, have another person verify that it is in fact empty.

It is important to always treat every firearm as if it is loaded and to follow proper safety procedures when handling firearms.