Webster’s Revised Unabridged Dictionary · 1913
Breech pin
Breech′ pin′ (pĭn′), Breech′ screw′ . A strong iron or steel plug screwed into the breech of a musket or other firearm, to close the bottom of the bore.
Webster’s Revised Unabridged Dictionary · 1913
Breech′ pin′ (pĭn′), Breech′ screw′ . A strong iron or steel plug screwed into the breech of a musket or other firearm, to close the bottom of the bore.