BREECHBLOCKS
Scrabble letter values: B3R1E1E1C3H4B3L1O1C3K5S1 = 27
Definition
BREECHBLOCKS is the plural of BREECHBLOCK.
noun BREECHBLOCK: a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.
Synonyms of BREECHBLOCK: breech_closer