Drawn to scale from SIG SAUER’s own specification sheet, and checked
mark by mark by a person. This is the same geometry Harson Ballistics draws your holdover on.
SIG SAUER HellFire Ballistic Hunter BDC — second focal plane, MOA subtensions, 4–16×
SIG's CANYON riflescope manual p12, 'Subtensions in MOA on max magnification'. The manual names no model; the CANYON4 4-16x44 SFP is the CANYON riflescope SIG lists with this reticle. Same layout as the WHISKEY4 BDC1 except the posts, which are 1 MOA thick here against 2 there. Published: 0.25 crosshair; windage hashes every 2 MOA (callout 2), 1.50 long and 0.25 thick, drawn at 2/4/6/8 either side; hold marks below centre at 1.50, 3.75, 6.50 and 9.50, each 1.50 long and 0.25 thick; posts 1 MOA thick, starting 10 MOA left, right and above centre and 14.50 below. No marks above centre, no numerals. HellFire illumination is a centre dot whose diameter SIG does not publish (drawn with no size, flagged illuminated). The hold marks are a BDC: SIG does not state the load or ranges they are cut for, so the app treats them as plain MOA holds. Outer post ends are not dimensioned (the sheet stops them at 20 MOA and draws no field-of-view outline) and are run to the field edge as a display convention.
How this one was checked
Verified 8 Oct 2026 against specs/sig-sauer/23SIG3562_CANYON_Riflescope_Manual_7404629-01_R00_4_.pdf page 12, read as vectors with pymupdf by tools/build_sig_sauer.py, which re-asserts every check on each build. scale 4.1483 pt/MOA from callout 10 (centre to top post tip); 40 published-callout edges then checked at that one scale, worst residual 0.009 MOA. The reticle is drawn twice on this page: a stroked outline and a set of loose filled rectangles over the posts. The fills are oversize and were ignored; the outline's centreline reproduces every callout. Checklist: cross with four posts, bottom post starting lower than the other three; windage hashes 2/4/6/8 both sides, centred on the line (equal above and below, so not one-sided); four hold marks below centre, centred on the vertical; no marks above centre; no numerals; no floating centre (the 0.25 lines run through); post tips square; every published figure (10, 14.50, 1.50, 3.75, 6.50, 9.50, 2, 1.50 x2, 0.25 x5 and the post thickness) lands on a drawn edge. Outer post extent is a display convention.
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
SIG SAUER.