Litehiker
Well-Known Member
Brian,
Where (if at all) does Sectional Density enter the calculations in the Custom Drag Modelling?
Eric B.
Where (if at all) does Sectional Density enter the calculations in the Custom Drag Modelling?
Eric B.
Hopefully we'll have a procedure/inputs to shape CDM curves for our bullets.why have 5 zones for a bullet when you can have 30 or more using a CDM.
Hopefully we'll have a procedure/inputs to shape CDM curves for our bullets.
If I remember right, Pejsa had a retardation coefficient procedure that produced a single modifier input -field determined for each bullet. The attributes BC and RCoeff then stayed together as a pair.
Way ahead of his time.
Pejsa had a retardation coefficient procedure that produced a single modifier input -field determined for each bullet. The attributes BC and RCoeff then stayed together as a pair.
Way ahead of his time.
You don't modify the actual CDM, never have. You just apply a correction to it. You can see this in the DSF tables.
Hello Doc,
What velocity range are you all going down to when building your CDMs?
Are you going into subsonic velocities when building your CDMs or are you staying supersonic?
THEIS
Our AB Android version is the last remaining hold out that allows for this. We are getting away from Segmented BCs and going to straight CDMs in all our programs/apps/devices. Segmented BCs in apps are essentially a Band-Aid fix. But why have 5 zones for a bullet when you can have 30 or more using a CDM.
Any plans on testing the .277 170gr Berger?
Thanks...
Its already been tested and is in the CDM Library. I see it in the Kilo app, Kestrel App, and in AB Mobile. I just double checked.
So, where are the results of Applied Ballistics' testing/calculations available?