The numbers
- Manufacturer
- Vortex
- Reticle
- EBR-4 MOA
- Focal plane
- first focal plane
- Units
- MOA
- Magnification
- —
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
Vortex EBR-4 MOA
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.
Scopes with this reticle
- Viper PST Gen II 2-10x32 FFP
Other Vortex reticles
Subtensions
FFP; the sheet: 'subtensions measured in MOA and remain constant at all magnifications'. Rebuilt 9 Oct 2026 from the per-scope sheet, which overrides the combined PST Gen II manual (M-00014) the old record came from - that record drew the right bar 4 thick (the 4 is the tick across the bar), no illuminated centre and no holdover tree. Published: side bars from 34, bottom bar from 36, 2 thick, with a 4 MOA tick across each; outer line .17; illuminated centre scales .36 thick; holdover tree bars 8 wide every 4 MOA and 4 wide between, 2 MOA apart; outer marks 1 and 2 long. Drawn, not published (the other callouts land on one scale): converted exactly from the vector outlines - every mark and which side of the line it sits, the thinner crossing at centre, the gap between the red centre scales and the outer scales, the bar ticks and the numerals. The centre scales are illuminated (drawn red). The bottom bar is DRAWN from 34 like the side bars; the sheet prints 36 and the record carries 36. Bars drawn to 50 MOA. Previous record: unverified.
How this one was checked
Verified 9 Oct 2026 against specs/vortex/VTX_PST-2101_EBR-4_MOA_RS_I_RI_ST.pdf page 1 (re-downloaded from the source URL the same day, byte-identical). Scale 3.543 pt/MOA fitted to the bars (2 MOA), centre (198.4255, 221.102); geometry converted exactly from the vector outlines. Every published callout is checked in tools/build_vortex_wave2.py and lands except one, recorded as published: 36 bottom bar: published 36.0, drawn 34.0025. Checklist walked: rows and extents, hash spacing, numerals, centre element and gap, post tips, which side of the line each mark sits (all centred unless the notes say otherwise), every callout.
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 Vortex.