metal in oil pan

Yes i do have a new timing cover and water pump. I took pics of the old one because this is what we found when i first took it off ( a while ago).

When i rotate the crank and have the piston move up and down there is not any noise or scrapping sound. IMO if a ring was broken, would there not be some sort of resistence? some sort of rub or scrape to say "hey somethings wrong"?

I looked into each cylinder as i rotated it and there were not any visable scratches,scrapes or gouges. they were all smooth and undistorted.

So now what? if i pull the pistons,and there is nothing wrong,can i use the say rings and put them back in?