{"type":"standard","title":"Headspace (firearms)","displaytitle":"Headspace (firearms)","namespace":{"id":0,"text":""},"wikibase_item":"Q217539","titles":{"canonical":"Headspace_(firearms)","normalized":"Headspace (firearms)","display":"Headspace (firearms)"},"pageid":1006274,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Headspace.png/330px-Headspace.png","width":320,"height":201},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/d/d0/Headspace.png","width":651,"height":409},"lang":"en","dir":"ltr","revision":"1243478422","tid":"b1891c92-688d-11ef-a657-ecf6d5f2d015","timestamp":"2024-09-01T18:12:05Z","description":"Insertion depth of a cartridge in a chamber","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Headspace_(firearms)","revisions":"https://en.wikipedia.org/wiki/Headspace_(firearms)?action=history","edit":"https://en.wikipedia.org/wiki/Headspace_(firearms)?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Headspace_(firearms)"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Headspace_(firearms)","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Headspace_(firearms)","edit":"https://en.m.wikipedia.org/wiki/Headspace_(firearms)?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Headspace_(firearms)"}},"extract":"In firearms, headspace is the distance measured from a closed chamber's breech face to the chamber feature that limits the insertion depth of a cartridge placed in it. Used as a verb by firearms designers, headspacing refers to the act of stopping deeper cartridge insertion. The exact part of the cartridge that seats against the limiting chamber feature differs among cartridge and gun designs. In general, bottleneck rifle cartridges headspace on their case shoulders; rimmed cartridges headspace on the forward surfaces of their case rims; and rimless pistol cartridges headspace on their case mouths. The case belts on belted cartridges were originally added to allow headspacing on the belt's forward surface, But in practice, this is often vestigial, and rifles chambered for belted cartridges may well headspace them on their shoulders and still be within CIP or SAAMI dimensional limits. However, belted cartridges and their corresponding chambers at their nominal CIP or SAAMI dimensions will headspace on the belt.","extract_html":"
In firearms, headspace is the distance measured from a closed chamber's breech face to the chamber feature that limits the insertion depth of a cartridge placed in it. Used as a verb by firearms designers, headspacing refers to the act of stopping deeper cartridge insertion. The exact part of the cartridge that seats against the limiting chamber feature differs among cartridge and gun designs. In general, bottleneck rifle cartridges headspace on their case shoulders; rimmed cartridges headspace on the forward surfaces of their case rims; and rimless pistol cartridges headspace on their case mouths. The case belts on belted cartridges were originally added to allow headspacing on the belt's forward surface, But in practice, this is often vestigial, and rifles chambered for belted cartridges may well headspace them on their shoulders and still be within CIP or SAAMI dimensional limits. However, belted cartridges and their corresponding chambers at their nominal CIP or SAAMI dimensions will headspace on the belt.
"}{"type":"general","setup":"What do you call a pig with three eyes?","punchline":"Piiig","id":213}
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