The numbers
- Manufacturer
- ZeroTech
- Reticle
- R3
- Focal plane
- second focal plane
- Units
- MOA
- Magnification
- 3–27×
In the second focal plane the subtensions are only true at one magnification — check your manual for which, and dial there before you hold.
Reticle library · ZeroTech
ZeroTech R3
Drawn to scale from ZeroTech’s own specification sheet, and checked mark by mark by a person. This is the same geometry Harson Ballistics draws your holdover on.
Drawn from ZeroTech Optics’s published specification.
Scopes with this reticle
- Vengeance 6-24x50
- Vengeance 4-20x50
- Vengeance 3-12x40
- Thrive HD 3-18x56
- Trace 4.5-27x50
- Trace 3-18x50
Other ZeroTech reticles
Subtensions
Official: A=0.18 line, B=1.0, C=0.12, D=1.0, E=1.5, F=0.25 hash, G=0.8 post, H=0.75, I=4.0 numbered interval, J=0.12 upper line, K=0.75, L=1.0, M=2.0, N=27.5 lower fine length, O=0.8 lower post. Sheet: FIELD OF VIEW @20 POWER = 60 MOA — used as SFP referenceMagnification 20.
How this one was checked
Rebuilt 11 Sep 2026 from ZeroTech's R3 spec sheet at 400 dpi, red annotation leaders filtered out by colour. Scale ANCHORED on the numbered marks: 40.171 px/MOA vertical over six (0.7 px residual), 40.225 horizontal over eight (0.6 px), centre px (1646.7, 2294.9). A free sequence fit drifted 2% and placed the numbered marks at 3.13/7.03/10.95, which is how the error announces itself. MEASURED: minor marks are DOTS (F=.25), not hashes — confirmed visually at 4x; crossbars 1.49 MOA (E=1.5) on every 4th (I=4.0); floating centre Ø0.12 (C) with the arms resuming at +/-1.00 (B/D/L); horizontal +/-16 with dots from 2; lower ladder to 24 with a dot at every MOA; numerals 0.75 (H/K) to the right of the lower stadia and above the horizontal; side posts 0.82 (G) from 17.84, top and bottom posts 0.80 (O). The upper/lower asymmetry has now been confirmed two independent ways — a per-MOA pixel scan and a 4x visual check — and it is real: below centre a dot sits at every MOA, while above centre there are dots only at 2 and 3 and then the mid-points 6, 10 and 14. At 5, 7, 9, 11, 13 and 15 the scan returns 0.12, which is the bare upper line weight (J), not a mark. The pattern is irregular but it is what ZeroTech draws; it is reproduced rather than regularised. The upper stadia also stops 1 MOA short of centre, matching the lower gap (B/D/L=1.0).
Use it on your own rifle
Harson Ballistics draws this reticle at your magnification with your holdover marked on it, from your rifle, load and conditions. Works with no signal and no account.
Subtensions are published by the manufacturer and reproduced here for reference. Confirm your own dope on a range before you rely on any of it. Harson.ai is not affiliated with ZeroTech.