Calculate bullet travel time from distance, muzzle velocity and ballistic coefficient, plus retained velocity, drop, wind drift and moving-target lead.

The drag model uses the ballistic coefficient, so it also returns retained velocity, drop and wind drift. Constant velocity is the quick textbook formula.

Use the BC printed on the ammo box. G1 matches most factory numbers, G7 matches long-range match bullet data.

Only used to report retained energy.

+ Conditions, zero and moving target (optional)

Bullet Travel Time Formula

BTT = D / V

Variables:

  • BTT is the Bullet Travel Time (seconds)
  • D is the total bullet distance (ft)
  • V is the average bullet velocity (fps)

To calculate Bullet Travel Time, divide the bullet distance by the average bullet velocity.

How to Calculate Bullet Travel Time?

The following steps outline how to calculate the Bullet Travel Time.

  1. First, determine the total bullet distance (ft). 
  2. Next, determine the average bullet velocity (fps). 
  3. Next, gather the formula from above = BTT = D / V.
  4. Finally, calculate the Bullet Travel Time.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total bullet distance (ft) = 300

average bullet velocity (fps) = 5000

FAQs

What factors can affect bullet velocity?

Bullet velocity can be affected by several factors including the type of gunpowder, bullet weight, barrel length, and environmental conditions such as air temperature and humidity.

How does bullet weight impact travel time?

Heavier bullets tend to have a slower velocity but may retain their speed better over long distances, potentially affecting the travel time. Lighter bullets may have a faster initial velocity but can slow down more quickly.

Can the Bullet Travel Time formula be used for any type of projectile?

While the formula (BTT = D / V) is primarily for bullets, it can theoretically apply to any projectile if you know the distance and average velocity. However, it may not account for variables like air resistance or gravity’s effect over longer distances.

Why is it important to calculate Bullet Travel Time?

Understanding Bullet Travel Time is crucial for long-range shooting, as it helps shooters adjust their aim for the time it takes a bullet to reach the target. This calculation can improve accuracy and safety in shooting practices.