Sentinel Works Zeroing Offset Calculator

Sentinel Works Zeroing Offset Calculator

Build a 1:1 printable wall target for close-distance zeroing. Enter your intended zero distance, the distance you can actually shoot, and your sight height over bore.

Calculator Inputs

Optional advanced setting. Leave at 0 if unknown.

Optional advanced setting. If you do not know your ballistic coefficient, leave this at 0. The calculator will still work using basic mechanical offset.

Desired Impact —
Zero Distance —
Available Distance —
Sight Height —

Custom Zeroing Offset Target

Print at 100% scale / actual size. Do not use “fit to page.”
1:1 PRINT TARGET
Verify scale with grid/ruler marks.
Desired Zero—
Actual Distance—
Sight Height—
Aim PointCenter black dot
Group Should Hit—
Adjustment RuleMove group to open circle
Desired POI
Horizontal grid is true scale
Vertical grid is true scale

How to Use

1. Print this page at 100% / actual size. Do not scale. SELECT "Background Graphics" option when printing.

2. Pin target flat to a safe backstop.

3. Aim at the center black dot.

4. Adjust sights/optic until the group lands on the open circle labeled Desired POI.

5. Confirm at the real zero distance when possible.

Notes

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Safety reminder: always follow firearm safety rules, ensure a proper backstop, and obey local laws/range rules. This target is for rough close-distance zeroing and should be validated at distance.