All six of your finds are from the civil war. The cylindrical ones are yankee 3-groove Minie bullets, fired ones showing impact damage from hitting the ground or trees. The miss-sharpened lead balls are not musket balls, they are anti-personnel balls from an exploded artillery shell (called "Case-Shot" balls). Neither the Minie bullets nor the Case-Shot balls existed during the Revolutionary War.
A little more detailed ID-info:
One of the lead balls shows a small projecting round disc with a tiny raised straight ridge across its center. That is a casting-mold sprue, which got partly snipped off but not completely removed. There's no need to completely remove it from a Case-Shot ball, but the projecting sprue MUST be removed from a musketball, lest it cause the ball to get jammed partway down the gunbarrel during loading.