There was a discussion recently on the British Military forum:http://britishmilitariaforums.yuku.com/topic/8814 - regarding a blown up Danish RB:
http://www.pbase.com/halp/danerollblock
The rifle looks much worse than the Swedish one that caused the fatal accident, yet the shooter in this case didn't suffer seriously injury. Perhaps because the blow up was so powerful that the chamber blew completely, whereas the Swede *only* let go of the breach block and the receiver, turning the breach block into a deadly projectile.