Contents
- Index
True Muzzle Velocity
Muzzle velocity is the velocity of the bullet just as it leaves the rifle's barrel. In practice, however, the bullet's velocity is measured a short distance from the muzzle.
To access this calculation, click the LOADS button, then Add Load or Edit Load, then click:
'FIND VELOCITY (Based on bullet drop or true muzzle velocity using a Chronograph)'
This mode will correct the Instrumental Velocity to a TRUE MUZZLE VELOCITY based on parameters such as Chronograph Screen Spacing , Distance from Chronograph and Ballistic Coefficient.
What to do:
1. Enter the velocity value recorded from the chronograph, the distance from the muzzle to the chronograph, chronograph screen spacing and the ballistic coefficient (if not already listed) in the corresponding boxes.
2. Note that the distance can be in Metres, Yards, or Feet by clicking on the desired unit of measurement.
3. Click the Calculate True Muzzle Velocity button to calculate and display the true muzzle velocity. Click the Apply to Current Load button to assign the true muzzle velocity to the currently selected load.
A frequently asked question…
Why should I calculate the true muzzle velocity? What difference can a few fps less make? The answer: Shoot! utilizes your defined distance to the chronograph to calculate what the velocity would have been at the muzzle...not 10 yards/feet/metres away! This seemingly minor error can result in a totally missed target at long ranges if not considered in the computations!