http://www.dtic.mil/ndia/2011ballistics/12015.pdf
W W.G.Ewald Defence Professionals/ DFI member of 2 Professional Joined Sep 28, 2011 Messages 14,139 Likes 8,594 Jul 23, 2013 #1 [PDF]http://www.dtic.mil/ndia/2011ballistics/12015.pdf[/PDF]
Kunal Biswas Member of the Year 2011 Ambassador Joined May 26, 2010 Messages 31,122 Likes 41,042 Jul 23, 2013 #2 Thanks for Sharing..