The three lead balls on top could be modern lead buckshot pellets of varying size, triple ought buck shot(000) will weigh about 4.5 grams and be .36 caliber, double ought buck shot (00) will weigh 3.5 grams and be about .33 caliber, and single ought buckshot (0) will weigh around 3.1 grams and is .32 caliber. They also could be as old as a black powder "buck and ball load" hard to tell. The next one down on the left has the appearance and size of a .22 rimfire round with cannelure rings for seating in the brass casing. The two deformed lead hunks and the rolled up piece of lead, no idea.