[talmand]

Considering it has been shown that a lightsaber easily and nearly instantly cuts through most metals, apparently due to extreme heat, that regular bullets would likely not cause an issue.

The speed of the projectile is not an issue either, Jedi use a precognition-like ability to dodge or block blaster fire. That's why a group is required, to eliminate the possibility of them dodging and blocking.

[PhasmaFelis]

Well, it depends on how thoroughly it dissipates the projectile. Turning a high-velocity slug into a high-velocity blob of superhot molten metal would certainly reduce its penetration, but you still wouldn't want it to hit you in the face.