LAST EDITED ON Nov-28-12 AT 11:36PM (MST)[p]Those are the Rx units, not the new "i" version. They re worked the rx, removing the ballistics calcs from the bow mode, and leaving 2 other modes, line of sight, and the rifle "tbr" mode which is angle calc for rifles. The TBR mode requires you to pick a drop chart and the unit uses this to add ballistics modifications to the angle cosine value, giving you a shot distance.
So, there are 3 modes to the 1000i
Bow; distance * the angle cosine
straight line distance; no angle comp
TBR; bullet drop ballistics info is used to modify the angle cosine.
As I mentioned in my email, I haven't had time to run thru all the TBR drop charts to see how much the true cosine is modified.
Additionally, when in rifle TBR mode, you choose the display method, ie;
basic, this is the newly calculated distance
hold, inches of hold over
mil, mill rad hold over
moa, minutes of angle hold over