These sectional densities are okay and the ballistic coefficients
are pedestrian, but field use out to at least 400 yards is unhampered by the numbers.
It is found that the velocity is correlated with the flight path angle when the probe is flying with a fixed ballistic coefficient
I confess this is my subjective estimate and not a scientific study, and that such a point gain will vary at any given match depending on conditions, but the improvement in ballistic coefficient
Anderson, "Ballistic coefficient
prediction for resident space objects," in Proceedings of the Advanced Maui Optical and Space Surveillance Technologies Conference, vol.
For the reentry time prediction, we consider the initial osculating eccentricity (e) and the ballistic coefficient
(B) as the design variables to find the initial state.
When considering the presence of the atmospheric drag, the loss in the energy starts to occur, and this loss increases with the ballistic coefficient
. So, there are values for the [C.sub.B], marked by the crossing of the lines of the energy before and the energy after the maneuver, where the loss due to the atmospheric drag is equal to the gain due to the Swing-By and the net result is a maneuver with zero variation of energy.
Obviously, it would be quite desirable to incorporate the described characteristics of the .300 Winchester Magnum into the optimum cartridge; doing so would mandate the use of a projectile with a ballistic coefficient
as close to 0.54 as is practical.
Understanding BC & Ogive The battle for king of long-range projectiles revolves around ballistic coefficient
(BC) and ogive shape.
Accuracy is comparable to the Berger and the ballistic coefficient
of the new Sierra is higher than any other 90 grain AR-15 bullet on the market.
An appropriate estimation of the ballistic coefficient
and the associated calculation of unknown parameters is the central issue in this field of research.
It features a radical new Extreme Point polymer tip bullet, which offers an elevated ballistic coefficient
for flatter trajectory and long-range accuracy potential.