Any one reload with surplus bullets?

[MH357]

I have seen 5.56 pulled projectiles from river valley ordnance really cheap $45.00/1000. Is their any thing special I need to be on the look out for. They claim to be resized and picked over to remove chewed up bullets. Why do they need to be resized? will bullet sealent the ocasional one be a problem, how hard is it to remove that stuff.

Thanks Mike H