>>10603494>>10603592It's irrelevant because bolt rounds would detonate on impact with a light-saber. It would literally be like exploding grenades within arms-reach of yourself, real bad idea.
The only thing a Force user could maybe do is deflect the shells path slightly with the force. I think most Jedi would get overpowered and wrecked by astartes in cqc, power weapons would have no problem parrying light-sabers. 40k Psykers are also capable of way meaner feats than most force abilities.