With proper planning, I could see using real guns with blanks for close up shots and fake guns with effects added for other shots. If it calls for slo-mo shot a bullet begin fired, that can safely and easily accomplished at a range and for extra precautions a separate armorer that can’t work on the set.
Liberals should not be allowed to handle guns. Most actors are liberals so they should not be allowed to use real guns.
In the past, many actors handled guns in their personal lives and knew how they should be used. The retard actors we have now are not safe with them.