First lesson: with the 707 and 747 bullets having exactly the same BC, there is little if any difference between them. You may see some differnec in the numerical tables, but on the graphs there is practically NO difference. In order to provide a real-world refence that is quite different, I have included the Hornady A-Max bullet that is 750 grains but has a BC of 1.05 instead of .670. This is a HUGE difference.
Okay, in the following 9 data tables we have the ballistic calculation for all three bullets with the barrel level to the ground for the first set, and the barrel set for maximum distance for the second and third set. For the 707 and 747 bullets the max elevation is 32 degrees, and for the A-Max it's 34 degrees. The reason for this will become evident later.
A few other comments relative to BC. BC is NOT a measure of how well bullets "fly". NO bullet ever made in history has the least ability to generate aerodynamic lift!! If you take a gun loaded with a certain bullet, and set up a trapdoor next to the gun with the same bullet sitting on it at the same level, and then set the trapdoor to open at the same MICROSECOND as the round goes off, BOTH bullets will fall to the ground at EXACTLY the same speed!! Any bullet, any cartridge, any muzzle velocity, the result is EXACTLY the same to the microsecond. BULLETS DON'T FLY!!!
Given that, here is the data for the 707 grain bullet shot to a distance of 3000 yards with the barrel level to the ground. Following it is data for the gun at an inclination of 32 degrees, with the sights set for a 5000 yard zero. Following that is a chart for the zero set to the maximum distance possible, which is 5650 yards for the 707 and 747 bullets. Do NOT try to see the diffences in the digital data, as you will never do it!! Wait for the following post with the ballistic flight charts in them.
gun level to the ground, 707 grain bullet, 3000 yard calculation
gun at 32 degrees, 5000 yard zero
gun at 32 degrees, maximum distance
gun level to the ground, 747 grain bullet, 3000 yard calculation
gun at 32 degrees, 5000 yard zero
gun at 32 degrees, maximum distance
gun level to the ground, A-Max bullet, 3000 yard range
gun at 34 degrees, 5000 yard range
gun at 34 degrees, maximum distance, which with the A-Max is 7385 yards
note that the maximum distance calculation and the maximum distance on this table do NOT co-incide!! Probably a software glitch, seeing as nobody uses actual data to shoot at 7000 yards.
Continued in post #2, which has graphs at higher resolution.
