<Table> <Tr> <Th_colspan="2">. 50 BMG </Th> </Tr> <Tr> <Td_colspan="2"> From left: . 50 BMG, 300 Win Mag, . 308 Winchester, 7.62 × 39mm, 5.56 × 45mm NATO, . 22 Long Rifle </Td> </Tr> <Tr> <Th> Type </Th> <Td> Machine gun / Rifle </Td> </Tr> <Tr> <Th> Place of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th_colspan="2"> Service history </Th> </Tr> <Tr> <Th> In service </Th> <Td> 1921--present </Td> </Tr> <Tr> <Th> Used by </Th> <Td> NATO and many other countries </Td> </Tr> <Tr> <Th> Wars </Th> <Td> World War II Korean War Vietnam War Cambodian Civil War Falklands War Persian Gulf War Global War on Terrorism Iraq War War in Afghanistan Syrian Civil War Iraqi Civil War (2014--present) Yemeni Civil War (2015--present) Saudi - led intervention in Yemen Conflict in Najran, Jizan and Asir </Td> </Tr> <Tr> <Th_colspan="2"> Production history </Th> </Tr> <Tr> <Th> Designer </Th> <Td> Winchester Repeating Arms Co. and Frankford Arsenal </Td> </Tr> <Tr> <Th_colspan="2"> Specifications </Th> </Tr> <Tr> <Th> Parent case </Th> <Td>. 30 - 06 </Td> </Tr> <Tr> <Th> Case type </Th> <Td> Rimless, bottleneck </Td> </Tr> <Tr> <Th> Bullet diameter </Th> <Td>. 510 in (13.0 mm) </Td> </Tr> <Tr> <Th> Neck diameter </Th> <Td>. 560 in (14.2 mm) </Td> </Tr> <Tr> <Th> Shoulder diameter </Th> <Td>. 735 in (18.7 mm) </Td> </Tr> <Tr> <Th> Base diameter </Th> <Td>. 804 in (20.4 mm) </Td> </Tr> <Tr> <Th> Rim diameter </Th> <Td>. 804 in (20.4 mm) </Td> </Tr> <Tr> <Th> Rim thickness </Th> <Td>. 083 in (2.1 mm) </Td> </Tr> <Tr> <Th> Case length </Th> <Td> 3.91 in (99 mm) </Td> </Tr> <Tr> <Th> Overall length </Th> <Td> 5.45 in (138 mm) </Td> </Tr> <Tr> <Th> Case capacity </Th> <Td> 292.8 gr H O (18.97 cm) </Td> </Tr> <Tr> <Th> Primer type </Th> <Td> #35 Arsenal Primer </Td> </Tr> <Tr> <Th> Maximum pressure (TM43 - 0001 - 27) </Th> <Td> 54,923 psi (378.68 MPa) </Td> </Tr> <Tr> <Th> Maximum pressure (EPVAT) </Th> <Td> 60,481 psi (417.00 MPa) </Td> </Tr> <Tr> <Th> Maximum pressure (C.I.P.) </Th> <Td> 53,664 psi (370.00 MPa) </Td> </Tr> <Tr> <Th_colspan="2"> Ballistic performance </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Bullet mass / type </Th> <Th> Velocity </Th> <Th> Energy </Th> </Tr> <Tr> <Td> 647 gr (42 g) Speer </Td> <Td> 3,044 ft / s (928 m / s) </Td> <Td_colspan="2"> 13,310 ft ⋅ lbf (18,050 J) </Td> </Tr> <Tr> <Td> 655 gr (42 g) ADI </Td> <Td> 3,029 ft / s (923 m / s) </Td> <Td_colspan="2"> 13,350 ft ⋅ lbf (18,100 J) </Td> </Tr> <Tr> <Td> 700 gr (45 g) Barnes </Td> <Td> 2,978 ft / s (908 m / s) </Td> <Td_colspan="2"> 13,971 ft ⋅ lbf (18,942 J) </Td> </Tr> <Tr> <Td> 750 gr (49 g) Hornady </Td> <Td> 2,820 ft / s (860 m / s) </Td> <Td_colspan="2"> 13,241 ft ⋅ lb (17,952 J) </Td> </Tr> <Tr> <Td> 800 gr (52 g) Barnes </Td> <Td> 2,895 ft / s (882 m / s) </Td> <Td_colspan="2"> 14,895 ft ⋅ lbf (20,195 J) </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> Test barrel length: 45 in (1,100 mm) Source (s): Ammoguide.com </Td> </Tr> </Table> <Tr> <Th_colspan="2">. 50 BMG </Th> </Tr>

What are the dimensions of a 50 caliber bullet
find me the text answering this question