Appears to have micro flaking

[Freemindedclark]

 

Amazon Forum Fav 👍

A Handbook of Civil War Bullets and Cartridges - Grab it through Amazon!

[arrow86]

Looks like a good material as well

 

[Arrow1492]

Bipolar percussion core. Simply put, likely a result of the impact between an anvil and hammers stone. Not created by utilization or intentional workmanship.

 

[monsterrack]

Arrow1492 nailed it. !!!!!!!!

 

[The Grim Reaper]

Bipolar percussion core. Simply put, likely a result of the impact between an anvil and hammers stone. Not created by utilization or intentional workmanship.

Great answer. Couldn't have said it any better.

 

[Freemindedclark]

Cool thanks for the info