The numbers
- Manufacturer
- ZeroTech
- Reticle
- G4
- Focal plane
- second focal plane
- Units
- MOA
- Magnification
- 1–16×
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 G4
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
- Thrive 3-9x40
- Thrive 4-16x50
- Thrive 1-10x24 LPVO
- Thrive HD 1-8x24 LPVO
Other ZeroTech reticles
Subtensions
Official: A=44 (fine inner total width), B=4 (centre gap), C=0.7 (centre dot), D=22 (lower fine before post), E=0.2 (fine line), F=2.5 (post). German #4 layout. LPVO hosts are sold illuminated; spec does not mark which parts glow or the colour.
How this one was checked
Rebuilt and verified 11 Sep 2026 from ZeroTech's G4 spec sheet at 400 dpi, 20.7 px/MOA. A plain duplex. Scale anchored twice: A=44 between the horizontal post inner edges and D=22 from centre to the lower post both give 20.7. MEASURED: centre dot 0.63 against C=.7; fine line 0.19 against E=.2; post 2.46 against F=2.5; clear centre 2.4 radius against B=4 total. The fine vertical runs ON above centre to the field edge with no post; posts are left, right and below only. Worth recording against the RAR rule — THIS sheet's drawn thicknesses ARE to scale, so 'ZeroTech schematics are not to scale' is a per-sheet property, not a house style, and has to be checked each time rather than assumed.
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.