Assertion: bore gun | /r/CapableOf | use a 2,000-grain
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text: The largest bore guns in common use (and bore rifles with the advent of breech loading and rifling in the late 19th century) included the 4 bore, using a 2,000-grain (130 g; 4.6 oz) slug at up to 1,400 ft/s (430 m/s).