Additional info via https://twitter.com/winkelsdorf/status/1451439068861116421 (translated, a little condensed): In order to use blanks, the weapon has to be modified because of reduced pressure from the blanks. Otherwise the weapon would not reload (think machinegun that only can do one shot you see the reason). The modification depends on the type of weapon but includes usually some kind of valve/pressure regulator. Also the mechanical elements of the gun are adjusted to because of the lower pressure. Example: A Luger gun "regular" has ~35000 psi(2400 bar), modifed with blanks ~11500 psi (800 bar).
If a regular bullet would be inserted, the weapon would most likely explode, so Baldwin would have been injured. Small pieces or dirt inside the weapon would normally not have the size and impact for such deadly injuries. That leaves a high probabilty that the valve or parts of it have been ejected at high speed - too early to speculate why. The vector in which such parts exit the weapon can be different to the direction of the barrel, so again much uncertainty at this point.
What you can say is this: Its unusual for the close participants in such filiming scenes to wear protective gear (head, body) - its cumbersome and pricy. And its the same problem everywhere, so it could have happened in asia,australia,europe,... the same way.
If a regular bullet would be inserted, the weapon would most likely explode, so Baldwin would have been injured. Small pieces or dirt inside the weapon would normally not have the size and impact for such deadly injuries. That leaves a high probabilty that the valve or parts of it have been ejected at high speed - too early to speculate why. The vector in which such parts exit the weapon can be different to the direction of the barrel, so again much uncertainty at this point.
What you can say is this: Its unusual for the close participants in such filiming scenes to wear protective gear (head, body) - its cumbersome and pricy. And its the same problem everywhere, so it could have happened in asia,australia,europe,... the same way.