About a year ago, I bought about 500 rounds of Fiocchi (G.F.L. headstamped) .223 ammo and I finally got around to shooting it about a month ago. So, yesterday I tumbled, deprimed and resized some of it. When I went to reprime it, the primers would not seat. So I think that the primer pockets are crimped and I get out the primer pocket tools. The primers still won't seat. I check some other fired brass (Federal, LC, Remington, Win) and they all seat just fine. Has anyone else had this issue? If so, what was the solution? I was thinking of just throwing it out since I have plenty of other, but its 500 pieces of brass. Thanks for any input.