The numbers
- Manufacturer
- Vortex
- Reticle
- EBR-2C MOA
- Focal plane
- first focal plane
- Units
- MOA
- Magnification
- 3–27×
In the first focal plane the subtensions hold true at every magnification, so a hold is a hold wherever the zoom ring sits.
Reticle library · Vortex
Drawn to scale from Vortex’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 Vortex Optics’s published specification.
In the first focal plane the subtensions hold true at every magnification, so a hold is a hold wherever the zoom ring sits.
FFP. Sheet is the Viper PST Gen II EBR-2C/EBR-4 MOA manual; it carries separate dimensioned charts for 3-15x44 and 5-25x50 EBR-2C and the two measure identically except the published fine-line weight (.12 on 3-15x44, .18 on 5-25x50; 0.18 recorded). Printed callouts: .75 / 1.25 / 2 are TOTAL hash lengths (odd integers and half marks / 2-multiples / 4-multiples), 1 and .5 hash spacing (1 MOA to 20, 0.5 to 32), 33 = side-bar inner end, 38 = top of bottom bar, 2 = bar thickness, 4 = length of the tick across each side bar (at 36) and the bottom bar (at 40), tree dots .2 and .3. Measured, not called out: plain crosshair through centre (no dot, no gap); horizontal and vertical marks stop at 32 with a gap to the bars; thin field line resumes at 33 above; vertical below is 1 MOA spaced to 36. Christmas-tree rows 4-36 span +-8,12,12,16,16,20,20,24,20 (row 36 is narrower than 32 on both charts) with 1 MOA dots from 2 on the left and from 3 on the right, where the row numeral takes the x=2 slot; rows are numbered beside the axis on the right, not at the ends. Numerals 4-32 above the horizontal both sides and 4-32 / 4-36 right of the vertical. Diamondback Tactical and Razor HD Gen II are listed from Vortex's reticle assignments but are NOT covered by this sheet; only the Viper PST Gen II charts were compared.
Compared against scratchpad/specs/vortex/vortex-ebr-2c-moa.pdf (VTX M-00014-0), PDF page 3 = printed pp 4-5 'Reticle Subtensions', both the 3-15x44 and 5-25x50 EBR-2C charts, rendered at 600 dpi. Scale calibrated on the 32 MOA hashes (15.7 and 16.1 px/MOA); callouts .75/1.25/2 lengths, 1 and .5 spacing, 33 and 38 bars, 2 bar thickness, 4 bar ticks, .2/.3 dots all measured within one pixel. Hash pattern, tree rows and dot pitch, numerals and positions, centre, bar tips and ticks checked on both charts.
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 Vortex.