Chair Gun/Near Zero questions

[SlowBykr]

I'm playing with Charigun and have a couple questions...

First, let me make sure I'm getting my terminology right Near Zero = Point where the pellet and cross hairs first meet while pellet is traveling upward through line of sight.  Far Zero = Point where pellet meets crosshairs on a downward path through the line of sight.  Is that right? 

Is there a place to manually enter a Near Zero distance in Chairgun?  It seems like the app expects for you to input the far Zero and calculates Near Zero for you.  Working on the assumption that most people select a Near Zero distance for sighting in, wouldn't it make more sense to allow you to put in your selected near zero then calculate your Far Zero?  I've sighted in at 20 yards and would like to be able to predict my trajectory from 10 yards out to the Far Zero.

[Motorhead]

Always done it via graph once scope height data and velocity/ pellet is known.

In "Hunter" class field target we choose our zero point based upon arch intersect at one range only.
Every distance closer and further than this Zero range become "hold overs" and never using hold under

Anywho ... while entering ZERO RANGE data you can clearly view what close and far intersects are doing 

[SlowBykr]

Thanks for chiming in, Motorhead.

I'm not seing how to input Zero Range data into Chairgun.  Must be user error.

Is it the case that Zero Range is either the first point of intersect when the pellet is on its upward tragectory, or the only point of intersect if the point of impact meets, but never goes above the intersect?

[Motorhead]

Thanks for chiming in, Motorhead.

I'm not seing how to input Zero Range data into Chairgun.  Must be user error.

Is it the case that Zero Range is either the first point of intersect when the pellet is on its upward tragectory, or the only point of intersect if the point of impact meets, but never goes above the intersect?

There is entry for Zero range ... and also HOW LARGE it is being a total distance +/- from pellet flight path.
Most FT shooter set default at 1/4" which is a +/- 1/8" window.

At you then manually enter your ZERO range the RED lines shown in graft become your guide to FINE TUNE your entered zero range so arch of pellet flight entered from the bottom red line and DOES NOT exit out the top red line.
Where ever that distance ends up IDEALLY becomes your zero range if you want all points of aim to be hold overs and never unders.

If your WANTED zero range NEEDS TO BE closer or further from optimum, then you have to deal with this keeping your head screwed on straight where your required Hold Under POA become relevant.