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Definition of Neck up
1. Verb. (context: firearms) to increase the size of a cartridge's chamber and calibre. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Neck Up
Other Resources:
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1. Verb. (context: firearms) to increase the size of a cartridge's chamber and calibre. ¹
¹ Source: wiktionary.com