gain-twistn.
U.S.
A rifle with a gaining-twist (see gaining adj.).
ΚΠ
1867 F. H. Ludlow Little Brother 166 I done it once, when Judge Lynch sot on a bush whacker, and I'd rather give my best gain-twist than do it again.
This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2018).
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n.1867