ScanTune™ Guide

How RangeScan Detection Works

RangeScan uses an advanced circular bullet overlay system to automatically detect and score bullet holes on your target. Based on your selected bullet diameter, it places precise circular overlays that achieve over 90% accuracy in typical shooting conditions—approaches 100% when lighting, target flatness, and phone camera setup are all optimal.

• Circular Bullet Overlay Mode The detection system places fixed-size circles on identified holes based on your selected bullet diameter. This works best for clean, single holes with good lighting and minimal paper damage.

Adding Missing Holes

• How to Add a Hole Zoom in on your target, tap the Add button, then press and hold (1 second) on the position where the bullet hole should be detected. A circular overlay matching your bullet diameter will appear.
• Placement Restrictions Overlays can only be placed inside valid scoring zones. You cannot add overlays outside the scoring area (for example, zone 7 on an NRA B-8 target is outside the scoring zones).
• Edge-Touch Scoring If a bullet hole tears the edge and touches an inner ring, position the overlay so its edge—not its center—touches the scoring line to receive the higher score value.

Removing Incorrect Detections

• How to Remove a Detection Zoom in on the incorrect detection, tap the Remove button, then press on the circular overlay you want to delete. The overlay will be removed and scoring will recalculate automatically.
• When to Remove Remove detections when the system incorrectly identifies paper damage, shadows, or other artifacts as bullet holes. Common false positives include staple holes, torn edges, or heavy shading.

• Overlay Size Circular overlays always match your selected bullet diameter, not the size of the torn hole on paper. In reality, a 9mm bullet often creates a tear slightly larger than 9mm due to paper stretch and tearing. For consistency, RangeScan uses the true bullet diameter rather than the visible hole size to ensure accurate and standardized scoring across all calibers.
• Manual Positioning You can manually offset overlays to better align with torn edges or irregular holes. This is especially useful when scoring edge touches or when the automatic detection slightly misses the hole center.
• No Bulk Delete There is no "Remove All" button to prevent accidental deletion of all detections. Each overlay must be removed individually to ensure you maintain control over your adjustments.
• Scoring Zone Boundaries All overlays must be placed within valid scoring zones on your target. The system will not allow placement in non-scoring areas to maintain scoring accuracy and prevent errors.