Found all this in the bank of a creek. Opposite side of creek is the town I live in, no houses on this side. Any of it look older? I'm thinking target shooting across creek.
Some of those do look like they could be old the musket balls for sure and that one at the bottom might be Civil War era. The fishing weight at the top right was cast in a spoon, after WW2 commercial fishing weights started to really be mass produced in numbers that ended most of the hand made weights like that.
One is now a sinker, the rounds balls probably 19th century, the one cylindrical bullet is a fired CW Sharps, all the other cylindrical bullets are modern. Probably from deer hunters.