Looking for a bit of help with a project. My son recently joined the Army National Guard and will be graduating from Basic Training in a few weeks. Since I can't travel to Ft. Sill to attend I am putting together a Shadow Box Display with lots of little odds and ends. I have some challenge coins, about 10 patches both regular and subdued, a commemorative Ka-Bar Army knife, etc. You know, all the usual stuff. Here is where I need some help: I'd like to put in there some inert/dummy rounds from everything he has told me they trained on. So I'll need .50 BMG, 7.62 NATO, 5.56 NATO, and 9MM. Of those four groups, I only have 5.56. Anybody out there spare 3 or 4 rounds of .50 & 7.62, and even 9MM. I hate to have to buy a box of each to get 3 rounds. Since I have never done this, for the 5.56 that I have, do I just drill a hole in the brass of a live round and dump out the powder? Is that safe? I am perfectly willing to pay for your time and effort and of course shipping. Since I am begging, I shouldn't be fussy. But I'd like them to look nice. Also, open to any suggestions of things Military that might be coll to include in his display.