JBM Ballistics Calculator

[fayettefatts]

The JBM Ballistics Calculator has a new address:
http://www.jbmballistics.com/cgi-bin/jbmtraj-5.0.cgi

 

[pezzy3333]

I have a problem with my JBM ballistic calculator.I think that there is something wrong with it because ,when I try to use spindrift calculation,I obtain a wrong windage :I shoot with right-hand twist barrel with 22sm rate twist ,when I try to find the windage at 1000m ;wind velocity 2m/s;wind angle 270 degree(a cross wind from left to right)-the JBM give me a -7clicks to compensate,but when I enter the same wind velocity at angle 90 degree I obtain 18 clicks windage which is immpossible ,because my barrel is right-hand twisted.Please tell me where is the mistake.I think that it must be somewher in the settings, but I tried everything and could not solve the problem . If someone use the same calculator,Please - help me.

 

[rogn]

Dont they have a tab for inappropriate results on the calculations window?

 

[pezzy3333]

I can not see such a tab