DownRange — Precision Ballistics Calculator

Bullet

Bullet / Load

Diameter (in)

Weight (gr)

BC Type

BC Value

Rifle & Zero

Muzzle Velocity (fps)

Zero Range (yds)

Sight Height (in)

Environment

Temperature (F)

Altitude (ft)

Wind Speed (mph)

Wind Direction

Spin & Stability

Twist Rate (in/rev)

Twist Direction

Bullet Length (in)

Diameter (in)

Coriolis Effect

Latitude (deg)

Azimuth (deg true)

Hemisphere

Coriolis columns added to range card when calculated

Angled Fire

Angle (degrees)

Range Type

Corrected hold shown in range card. Both uphill and downhill reduce required elevation.

Range Card

Start (yds)

Stop (yds)

Step (yds)

Output Units

Enter your data and calculate

Your range card will appear here

Favorites

Quick access to your saved bullets

Wind Parameters

Wind Speed (mph)

Wind Direction

Target Range (yds)

Muzzle Velocity (fps)

Wind Clock

12 3 6 9 1:30 4:30 7:30 10:30

CLICK CLOCK FACE TO SET DIRECTION

Wind Value

100%

Full Value Wind

Wind Drift at Range

Inches

MOA

MILS

1/4 MOA Clicks

Wind Speed Table

Wind (mph)	Inches	MOA	MILS

Gun & Load Profiles

Save and load complete rifle configurations

No profiles saved yet

Set up your rifle in the calculator then click Save Current Setup

Quick Field Reference — Uses Active Calculator Profile

Elevation Hold

MOA UP

Wind (10 mph)

Velocity (fps)

Time of Flight (s)

DOPE Book

Data On Previous Engagements — Personal Shot Log

Date	Rifle / Load	Range	Pred Elev	Actual Elev	Delta	Pred Wind	Actual Wind	Temp	Alt	Notes

Scope Click Calculator

Correction Needed

Unit

Range (yds)

Muzzle Velocity Truing

Shoot at a known distance and enter your actual impact point to back-calculate your true MV.

True Range (yds)

BC (G7)

Stated MV (fps)

Zero (yds)

Predicted Drop (MOA)

Actual Impact (MOA)

MOA / MILS Converter

Range (yds)

MOA

MILS

Inches at Range

G1 / G7 BC Converter

Convert between G1 and G7 ballistic coefficients using the standard form factor ratio.

G1 BC

G7 BC