Difference between revisions of "Sectional density"
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| − | <!-- NOTE to Editors: We request that you please DO NOT change or remove ANYTHING in the [[Second Amendment]]-[[Gun rights]]-related Template links preceded with "{{", such as {{Template:Firearms_topics}} or {{Template:Firearms SAMMI glossary quotation}}. Thank you. -->'''Sectional density''' (SD) | + | <!-- NOTE to Editors: We request that you please DO NOT change or remove ANYTHING in the [[Second Amendment]]-[[Gun rights]]-related Template links preceded with "{{", such as {{Template:Firearms_topics}} or {{Template:Firearms SAMMI glossary quotation}}. Thank you. -->'''Sectional density''' (SD) is a [[Glossary of Firearms and Second Amendment Terms|firearms term]] related to [[ammunition]]. According to [[:Category:Gun Writers|gun writer]] Matthew Boyd, sectional [[density]] is "the [[diameter]] to weight [[ratio]] of a [[bullet]]. Calculated by dividing the bullet's weight in [[pound]]s by its [[diameter]] in inches. Sectional density is important because, all other factors being equal, the higher the SD the better the [[penetration]] of the bullet."<ref>Boyd, Matthew J., "[http://www.chuckhawks.com/firearms_terminology.htm Basic firearms Terminology Defined]." [[Guns and Shooting Online]] - [[Chuck Hawks]].com, 2012. Accessed February 19, 2015</ref> |
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Latest revision as of 22:49, June 27, 2016
Sectional density (SD) is a firearms term related to ammunition. According to gun writer Matthew Boyd, sectional density is "the diameter to weight ratio of a bullet. Calculated by dividing the bullet's weight in pounds by its diameter in inches. Sectional density is important because, all other factors being equal, the higher the SD the better the penetration of the bullet."[1]
Bibliography - Further Reading
- Party, Boston T., Boston's Gun Bible. Wyoming: American Redoubt Javelin Press, 2009 revision to 2002 edition. Chapter 9: Combat rifle cartridges.
References
- â Boyd, Matthew J., "Basic firearms Terminology Defined." Guns and Shooting Online - Chuck Hawks.com, 2012. Accessed February 19, 2015