Your digital DOPE book
A session page
Every range session is a ruled page like this one. Fill in what you measured and leave the rest blank. DOPE stands for Data On Previous Engagements.
- Date shot
- Rifle
- Barrel
- Chronograph
- Avg velocity
- fps
- ES
- fps
- SD
- fps
- Shots
- Distance
- yd
- Group size
- in · MOA
- Mean radius
- in · MOA
What's in the book
Range sessions
Record average velocity, ES and SD, groups at each distance, rifle, barrel, chronograph, photos and notes. Public by default, private when you want.
Browse sessions →Group Analyzer
Upload a target photo, calibrate the scale and mark each shot. Get group size, mean radius and MOA, plus an annotated image.
Open analyzer →Collective groups
Groups shot at the same distance with a marked point of aim are combined into one readout, with a probable flier circled.
How it works →Hit Probability
Start from a measured mean radius and see extrapolated hit probability across ranges and target sizes.
Open tool →Precision Trend
Pick a rifle and an ammo you have shot through it. Each distance gets its own chart, one point per session.
Open tool →Steel games
Log hits at distance in hit/miss mode, or scored mode with multiple target sizes, point values and reusable templates.
Browse steel →DOPE Cards
Elevation and windage reference cards for your rifle and ammo combinations.
Open cards →Target Randomizer
Set up your range's target catalog once, then tap at the range to get a random target to engage.
Open tool →
Start your book
Anyone can browse public sessions. Sign up to record your own.