just aquired these bullets. what are they?

[Naches Sportsman]

So ky neighbor just gave me 359 of these as he got them for free at a hard sale but has no idea of what caliber they are or what they are worth. The container someone put them in says 300 grain. That's all I know.
Any help identifying these and what they are worth is appreciated

The side by side picture is a 50 cal compared to the lead which I need help identifying.

[Mike450r]

I would say based on the measurement shown,  not a great angle but looks like probably .56 caliber

[snowpack]

maybe .58 mini for the civil war replicas, but if that is the case the one in the side by side for comparison would look to be .30 cal 

[h2ofowlr]

Buffalo bullets.  Or mini's.

[biggfish]

It looks to me like a .68 caliber for a smoothbore musket.

[Mike450r]

That measurement looks like 9/16 to me.  That equates closest to .56

[Don Fischer]

You must know someone that has a caliper to measure it. If they are all lead, what will you do with them. I figure you don't reload.

[BiggLuke]

Melt 'em down and make decoy wieghts or new cast bullets.