I`ve got a box of U.M.C. .45-500 govt. smokeless central fire cartridges here with the old draw string box.any idea of approx. value.condition of box is 90%.and all 20 rds are in it.never been opened,damn I want to shoot a few.but won`t.

At least $45 if as described, perhaps over $100; hard to say w/o seeing box.

Set the box on the scanner & scan it then post the photo for us.