Definitely wouldn't be worse as there will only be lead dust from erosion of the pellet in the barrel instead of additionally having lead/lead-compound vapor fr

Definitely wouldn't be worse as there will only be lead dust from erosion of the pellet in the barrel instead of additionally having lead/lead-compound vapor from the heat and chemical reactions. But it's still a concern, so hands, arms, and face should definitely be washed after loading/shooting/cleaning. Extended firing sessions should be followed by a shower and clothes change. Fortunately, the elemental lead in cast pellets/bullets is not very bioavailable, however it's still a good idea to minimize exposure.