Changes

'''B.C.''' literally means "before Christ" and is the dating mechanism used for older dates in human history.  However, due to a miscalculation, the calendar start time does not correspond to the exact year of [[Jesus]]' birth, which actually occurred a few years earlier.

'''B.C.''' literally means "before Christ" and is the dating mechanism used for older dates in human history.  However, due to a miscalculation, the calendar start time does not correspond to the exact year of [[Jesus]]' birth, which actually occurred a few years earlier.

==Firearms==

==Firearms Term B.C.==

* In [[Glossary of Firearms and Second Amendment Terms|firearms terminology]], B.C. refers to [[ballistic coefficient]]. According to [[:Category:Gun Writers|gun writer]] Matthew Boyd, ballistic coefficient is "the [[ratio]] of a [[bullet]]'s [[sectional density]] to its [[coefficient]] of form. BC represents how efficiently the bullet flies through the air; the higher the BC number the more [[aerodynamic]] 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>

* In [[Glossary of Firearms and Second Amendment Terms|firearms terminology]], B.C. refers to [[ballistic coefficient]]. According to [[:Category:Gun Writers|gun writer]] Matthew Boyd, ballistic coefficient is "the [[ratio]] of a [[bullet]]'s [[sectional density]] to its [[coefficient]] of form. BC represents how efficiently the bullet flies through the air; the higher the BC number the more [[aerodynamic]] 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>