Can I ask a question as this is annoying the $%^k out of me.
I'm English and have been involved in shooting for 40 years plus gunsmithing/armourer for a number of years. I have a library of reference books, even a copy of the "Gun and it's Development" from 1899 by Greener.
No where except this forum have I come across someone referring to bullets as 'heads'.
Is it a colloquial term specific to a county?