Here is what I found when I split the case.  There was indeed some shrapnel that bounced around.  So much so, there is a hole in the case that opens into what seems to be an empty cavity in the casting.  There are also gouges/scrapes around the case.  Does anyone have an opinion as to whether or not this is fixable, and if so, worth fixing?  Looking around ebay, there are a lot of cases out there, but most seem to have similar gouges (albeit, not holes).  Thanks.