good call chuck....
you just simply never know...and, although ammo is pricey and cheap/free ammo would be great to have, its not worth the risk at all IMO...
even if you broke them down and weighed the charges, whose to say there isnt different charges and/or different powder types in different cases??? and how is anyone going to ID the powder???? 45gr of 2 different powders can mean a gun that shoots GREAT and a gun that blows apart...
just no way of knowing whats truly in those cases....
like was said, they sound like they came from a good source...but, mistakes happen....over the years different ammo could got mixed in the marked bags etc etc...
corelokts and power points can still be had pretty reasonably for pretty inexpensive ammo to burn on the range...and if your gun blows up from that, you got a company to blame...