Need Help Identifying some lead. Is it Minnie Balls or what Caliber??

[SGTBilko]

I was hunting a field today behind an Old Military Academy and ran across what looks like a few smashed lead looks like minnie balls, and a revolver lead and smashed revolver lead. I am not sure what the other piece of metal is either with a flat end?? Some of the lead looks like it has rifle markings on them.
Does anyone know what caliber these may be or can provide some information on the other items? I appreciate any help on these.

Thanks in advance for the help!

SgtBilko

 

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[CrustyClad]

Looks to be a rifled shotgun slug maybe from a 410...

 

[ivan salis]

look to me to be a "foster" type shotgun slug * invented in the USA 1931 -- its a modified type of brennke slug with a hollow base * it has rifling on the sides and a hollow base --if there is rifling in the side but the base is solid --then it is a brennke type slug which was invented in europe in 1898 -- the round shot might be shotgun style " buckshot " ( if found in the same area as the shotgun slugs ) -- both of these shotgun slug types are clearly post civil war era.

 

[SGTBilko]

look to me to be a "foster" type shotgun slug * invented in the USA 1931 -- its a modified type of brennke slug with a hollow base * it has rifling on the sides and a hollow base --if there is rifling in the side but the base is solid --then it is a brennke type slug which was invented in europe in 1898 -- the round shot might be shotgun style " buckshot " ( if found in the same area as the shotgun slugs ) -- both of these shotgun slug types are clearly post civil war era.

I went back out there today and noticed a tree stand in the woods on the outskirt of the field, and can see them using these for deer hunting with signs of salt licks in the field. Thanks for your help on this, I actually seen the images online unfired. Thanks both of you for your input and help on identifying these!