'''Small-bore''' refers to calibers with a diameter of {{convert|.32|in|abbr=on}} or smaller.<ref>{{Cite web | url=http://www.chuckhawks.com/column2_medium_bore.htm |title = Medium Bore Musings}}</ref> It may also refer to small-bore rifle competition. The medium-bore refers to calibers with a diameter between {{convert|.33|in|abbr=on}} up to {{convert|.39|in|abbr=on}} and large-bore refers to calibers with a diameter of {{convert|.40|in|abbr=on}} or larger.<ref>{{Cite web | url=http://www.chuckhawks.com/intro_big_bore.htm |title = Big Bore Rifle Cartridges}}</ref> Miniature bore refers historically to calibers of {{convert|.22|in|abbr=on}} or smaller.
There is much variance in the use of the term small-bore, which over the years has changed considerably with anything under {{convert|.577|in|abbr=on}} caliber considered small-bore prior to the mid-19th century.<ref>{{Cite web | url=http://www.rifleman.org.uk/index-31.html |title = Historic small-bore Enfield rifles, training rifles and BSA rifles; plus league competitions}}</ref> __NOTOC__
==Small-bore competition== Small-bore competition often refers to shooting competitions conducted with .22 Rimfire target rifles.<ref>{{Cite web | url=http://www.smallborerifle.com/whatissmallbore.php |title = SmallBoreRifle - What is Smallbore Rifle Shooting?}}</ref><ref>http://compete.nra.org/documents/pdf/compete/RuleBooks/SBR/sbr-book.pdf Small-bore rifle NRA rule book</ref>
==See also== * List of rifle cartridges * Table of handgun and rifle cartridges
== References == {{reflist}} * Historic small-bore Enfield, BSA and other Service, Training and Target rifles reference pages, with league competitions for such rifles [http://www.rifleman.org.uk]
==External links== * [http://compete.nra.org/documents/pdf/compete/RuleBooks/SBR/sbr-book.pdf Small-bore rifle NRA rule book]
{{DEFAULTSORT:Small-bore}} Category:Pistol and rifle cartridges