Id needed please possible percussion cap

[seahorse]

Some sort of metal inside,color of silver, outside seems to be copper or brass. Found on trail in woods.

 

[jwarner51]

Looks to me like a copper jacketed bullet that hit something probably like a .45 Pretty common find

 

[NOLA_Ken]

Yep, you've got a fired bullet there. A measurement in 100ths of an inch will tell what caliber it is.

 

[sutphin]

FIRED BULLET.................