Range Safety Distance Calculator

Minimum range backstop height and distance from firing line.

Muzzle velocity (fps)

Bullet weight (grains)

Firing line to target (yds)

Max elevation angle (deg)

Lateral safety angle (deg)

Tab to move between fields

Maximum range (yds)

36,551

SDZ depth (yds)40,206

Backstop height (ft)32.2

Berm depth (ft)13.6

Lateral buffer (yds)27

Total SDZ width (yds)54

Muzzle energy (ft-lbs)2,611

How to Use This Calculator

Enter the Muzzle Velocity in fps and Bullet Weight in grains for the highest-powered firearm.
Set Firing Line to Target distance and Maximum Elevation Angle for safety planning.
Enter Lateral Safety Angle in degrees from centerline.
Review Maximum Range, SDZ Depth, required Backstop Height and Berm Depth.
Use Total SDZ Width and Lateral Buffer to lay out the physical range boundaries.

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