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7mm Ballistics Calculator

Ballistic Drop Equation:

\[ Drop = \frac{v^2}{2g} \times \sin(\theta) - \frac{gt^2}{2} \]

m/s
radians
seconds
m/s²

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1. What is the Ballistic Drop Equation?

The ballistic drop equation calculates the vertical drop of a projectile (like a 7mm bullet) based on its initial velocity, launch angle, flight time, and gravity. It accounts for both the upward component of the initial trajectory and the downward pull of gravity.

2. How Does the Calculator Work?

The calculator uses the ballistic drop equation:

\[ Drop = \frac{v^2}{2g} \times \sin(\theta) - \frac{gt^2}{2} \]

Where:

Explanation: The first term calculates the vertical component of the trajectory, while the second term accounts for gravitational pull over time.

3. Importance of Ballistic Calculations

Details: Accurate ballistic calculations are essential for long-range shooting, helping marksmen compensate for bullet drop at different distances.

4. Using the Calculator

Tips: Enter velocity in m/s, angle in radians, time in seconds, and gravity (default is 9.81 m/s²). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert degrees to radians?
A: Multiply degrees by π/180 (approximately 0.0174533).

Q2: Does this account for air resistance?
A: No, this is a simplified equation that neglects air resistance and other factors for basic calculations.

Q3: What's typical velocity for 7mm rounds?
A: Varies by cartridge, but common velocities range from 700-900 m/s for rifles.

Q4: Why is gravity 9.81 m/s²?
A: This is the standard acceleration due to gravity at Earth's surface.

Q5: How accurate is this for long distances?
A: For precise long-range ballistics, more complex models accounting for drag, wind, etc. are needed.

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