The 123 gr bullet is not available yet but I would love to try this out. Looks promising.
New Hornady 4 DOF ballistic calculator
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I've already been playing with it a little.
I think they took their Doppler radar data and built a new program for people who want high hit probability at long range, like Lapua did with Quick Target Unlimited many years ago.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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Originally posted by acourvil View Post...And isn't the drag coefficient a component of ballistic coefficient?
The drag function, size and velocity of the bullet define how quickly energy bleeds out of the bullet from drag.
The bullet's mass and velocity define the energy budget available to resist drag.
The ballistic coefficient is a short hand approximation to the drag coefficient, mass and size of the projectile used in most trajectory calculators. Some, possibly Hornady's, use the drag function, size, weight, and velocity to directly integrate the trajectory. The tend to use a lot of calculations, so run a bit slow in most mobile devices and many desk top computers.shootersnotes.com
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The giveaway is that they have data for bullets they tested on Doppler radar track.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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