I picked up this ammo last weekend, it's 45 acp. I believe it's WW2 era, it's headstamped EC 43 or ECS 43. 1 box is loaded on half moon clips, while the other 3 boxes are packed loose. Does this have any collector value or should I just shoot it up? It looks to have been someplace dry and clean because the brass and bullets show no sign of corrosion. Thanks for any info I can get on this.