E Erich New member Dec 4, 2001 #2 http://www.firearmstactical.com/briefs27.htm#Sectional Density Sectional Density The sectional density of a .45ACP 230 grain bullet is determined as follows: M 7000 ÷ d2 = sectional density Step 1: Divide M (M = bullet weight in grains) by 7000: 230 ÷ 7000 = 0.033 Step 2: Determine d2 (d2 = the square of bullet diameter in inches): 0.451 x 0.451 = 0.203 Step 3: Divide the quotient of step 1 by the product of step 2: 0.033 ÷ 0.203 = sectional density of 0.163 (Thanks to Mr. Dodson & Co.)
http://www.firearmstactical.com/briefs27.htm#Sectional Density Sectional Density The sectional density of a .45ACP 230 grain bullet is determined as follows: M 7000 ÷ d2 = sectional density Step 1: Divide M (M = bullet weight in grains) by 7000: 230 ÷ 7000 = 0.033 Step 2: Determine d2 (d2 = the square of bullet diameter in inches): 0.451 x 0.451 = 0.203 Step 3: Divide the quotient of step 1 by the product of step 2: 0.033 ÷ 0.203 = sectional density of 0.163 (Thanks to Mr. Dodson & Co.)
J Jaywalker New member Dec 4, 2001 #3 You might also want to look at the following URL: http://internet.roadrunner.com/~jbm/ballistics/secdens.html Jaywalker
You might also want to look at the following URL: http://internet.roadrunner.com/~jbm/ballistics/secdens.html Jaywalker
