- breechblock as a noun:
- 1
breechblock
noun
1 breechblock
A metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.
synonym: breech closer.
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noun
A metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.
synonym: breech closer.
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