Definitions from Wiktionary (proof mark)
▸ noun: (firearms) A mark stamped on a gun to show that it has been tested successfully.
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▸ noun: (firearms) A mark stamped on a gun to show that it has been tested successfully.
Similar:
patch,
safety lock,
hammer,
paraffin test,
pontil mark,
patch box,
percussion lock,
portfire,
puncturation,
spring searcher,
more...
Phrases:
▸ Words similar to proof mark
▸ Usage examples for proof mark
▸ Idioms related to proof mark
▸ Wikipedia articles (New!)
▸ Words that often appear near proof mark
▸ Rhymes of proof mark
▸ Invented words related to proof mark