Originally Posted by trebark
Ok - so the 'color' of the output has something to do with the stability. But how do you utilize the data (1.359)?
Instability at 175yards really seems inconceivable. Berger recommends a 10 twist for their 88 grain bullets.
If you look on the bottom of the page here >>>> JBM - Calculations
it tells you to ensure the reading is between 1.3-2.0 for stability.
The 1.359 is just within the parameters.
If the number goes below the 1.3 it turns yellow which indicates the bullet is unstable.
At the velocity that the reading falls below 1.3 is the velocity that I look up on exbal and from that I then look across the exbal chart to give the range.
I am trying to get a better understanding of ballistics and how a bullet behaves in flight.
It appears to me that some bullets remain stable in flight longer and as such will give tight groups at longer ranges. I think this may have somthing to do with it.