Bullet ID

[Carolinabusguy]

Hello everyone
I?m not very educated on bullets . I don?t do a lot of civil war hunting. However this bullet seemed different , very white and a hollow base . Any chance this is civil war era pistol bullet or just another modern bullet? Thanks for any help

 

[Colt0208]

I found one just like it recently....... interested to see the responses!

 

[Charlie P. (NY)]

Post Civil War (it is swaged, not cast). Measurements in thousands of an inch and weight in grains would help. Visually it looks like a .32 S&W or thereabouts.