1:8” right hand
No vertical offset - vert off is for the instance where you create two or more cartridges for a given rifle and don’t rezero between changes, for example two bullets, loads, or conditions (suppressed vs. not). So if I used the offset for suppressed vs. not, with my can on, my 100yrd data would say .2U .5L instead of 0U 0L/R.
Start, step, and end are controls for the table output - pretty self explanatory, start is the start of the table, end is the end, and step is the interval for the outputs between. So start 100, end 1000, step 50 would give you data output in the table for 100, 150, 200, 250..., 900, 950, 1000.