Session Notes
🤖 Automatic Shot Detection (Beta)
Automatically detect points of impact with advanced image analysis and confidence scoring
📍 Precise Aim Point Marking
Click to identify exactly where you aimed on your target for accurate analysis
🎯 Shot Group Analysis
Mark points of impact and get detailed grouping statistics with automatic calculation of group size, mean radius, and accuracy metrics
📏 Reference Scaling
Draw reference lines to calculate real-world distances and measurements
💾 Save & Export
Save sessions locally in your browser or download detailed analysis reports
📄 File Loaded
📷 Upload New Target Image
Click to select an image file
💡 For Best Results:
- Use high-resolution images
- Take photos straight-on
- Ensure good lighting
- Avoid blurry shots
📁 Upload Saved Analysis File
Click to select a .shottracker.json file
📋 Analysis Files Include:
- Target image
- Targets and shots
- Reference line
- Analysis data
💾 Load Saved Analysis
Click to browse your locally saved analyses
🎯 Saved Analyses Include:
- Recent targets
- Quick access
- No downloads
- Auto-saved
Analysis Results
Aim Points
No aim points set. Click on the image to mark where you aimed.
Shots
No shots marked. Click on the image to mark points of impact.
Reference Line Setup
Assuming image width is 25" for calculations.
Help & User Guide
Getting Started
- Upload Your Target Image: Click "Get Started" and select a clear photo of your target
- Set Your Parameters: Enter the distance to target and select your firearm type
- Begin Analysis: Use the mode buttons to mark aim points and shots
Analysis Modes
📍 Set Aim Points Mode
Click on your target to mark where you were aiming. You can:
- Double-click/tap to create new aim points
- Drag existing aim points to reposition them
- Click the × button to delete aim points
🎯 Mark Shots Mode
Mark your shots manually or use AI detection. Features:
- Double-click/tap to create new shot markers manually
- Use "Detect Shots" button for automatic detection
- Drag shots to adjust their position
- Delete shots with the × button
- Shots are automatically assigned to the nearest aim point
📏 Set Reference Line Mode
Draw a reference line for accurate measurements:
- Click and drag to draw a line across a known distance
- Enter the real-world length in the Reference Length field
- Click "Set" to apply the reference for calculations
Tips for Best Results
- Image Quality: Use clear, high-resolution photos
- Camera Angle: Take photos straight-on, not at an angle
- Lighting: Ensure good lighting with minimal shadows
- Reference Lines: Use target borders or known measurements for scaling
- Precision: Zoom in for more accurate marking of small details
Understanding Your Results
Key Metrics
- Avg Distance from Aim Point: Average distance from shots to their nearest aim point
- Mean Group Radius: Average distance from the center of all shots to individual shots
- Group Size: Diameter of the circle containing all shots in a group
- Standard Deviation: Measure of shot consistency and precision
Glossary of Statistical Terms
Mean Radius
The average distance of all shots from the center of the group. This measures the overall spread of your shots. A smaller mean radius indicates better grouping. Learn more
CEP (Circular Error Probable)
The radius of a circle that contains 50% of all shots. CEP is a standard measure of precision in ballistics and shooting. If your CEP is 1 inch, half of your shots land within 1 inch of the group center. Learn more
Group Size
The maximum distance between any two shots in a group, also known as extreme spread. This is the diameter of the smallest circle that contains all shots.
Standard Deviation (Coming Soon)
A measure of shot consistency. Lower standard deviation means your shots are more consistently grouped. Includes radial, horizontal, and vertical components.
MOA (Minute of Angle)
An angular measurement equal to 1/60th of a degree. At 100 yards, 1 MOA equals approximately 1.047 inches. Used for scope adjustments and precision measurement.
MIL (Milliradian)
An angular measurement where 1 MIL equals approximately 3.6 inches at 100 yards. Common in military and tactical shooting applications.
Saving and Loading Sessions
- Save Locally: Save your analysis to browser storage for quick access later
- Save Status Indicator: Track whether your work is saved with the status indicator
- Export as File: Download your session as a .shottracker.json file for backup
- Export as PDF: Generate a detailed PDF report with image and analysis
- Upload Saved File: Click to select .shottracker.json files from previous sessions
- Session Data: Add date and notes to document your shooting sessions
- Auto-Compression: Large images are automatically compressed when saving locally
Session Management
- Save Status: The indicator shows if your work is saved, unsaved, or has pending changes
- Overwrite Protection: When you load and modify a session, saving will update the same session
- Storage Limits: Browser storage has limits; export important sessions as files for backup
- Session Names: Sessions are automatically named with date and basic info
Controls & Navigation
-
Desktop:
- Zoom: Use +/- buttons or mouse wheel
- Pan: Click and drag in viewing mode
-
Mobile:
- Navigate: Use Previous/Next buttons to move between steps
- Zoom: Pinch to zoom on touch devices
- Pan: Touch and drag to move around
-
Menu System:
- Home: Return to landing page
- Help: Access this help guide
- Toggle Visibility: Use checkboxes to show/hide different elements
- Reset View: Click "Reset" to return to original zoom level
- Start Over: Clear all data and return to the beginning
Privacy & Security
Shot Tracker Pro processes images locally in your browser and calculations happen on your computer. We collect tracking and data metrics for analysis and improving the product.
System Requirements
- Device Support: Works on desktop, tablet, and mobile devices
- Browser: Modern web browser with JavaScript enabled
- File Types: JPG, PNG, and other common image formats
- Mobile: Optimized for touch screens with mobile-specific interface
Troubleshooting
Common Issues
- Image won't load: Check file format and size, try a different image
- Measurements seem wrong: Verify your reference line length is correct
- Can't place markers: Make sure you're in the correct mode (aim points or shots)
- App not responding: Refresh the page and try again