Rifle scope reticles fall into five main families, and each solves one problem: duplex for fast, uncluttered aiming; mil or MOA grids for measuring and correcting; BDC for holding over at set distances; combined designs such as ACSS for drop, wind and ranging in one picture; and illuminated centres for low light and daylight speed. Choose the family that matches the problem you actually have.
Every hash mark and dot in the glass is something you must look past to see the target. So the right question is never "which reticle has the most features?" but "what does each feature do, and will I use it?" Answer that honestly and the reticle catalogue gets much simpler.
Key takeaways
- A duplex is the right reticle for most stalking and rimfire shooting inside 200 m.
- Mil and MOA grids only measure correctly in first focal plane scopes, or at an SFP scope's calibrated power.
- BDC and ACSS holds are worked out for one load and zero; check each one on paper with your own ammunition.
- Good illumination has very dim low settings for dusk and, on LPVOs, a daylight-bright top setting.
- Illumination should sit on a physical reticle, so the scope still aims with a flat battery.
Duplex: the default for a reason
The duplex is the plain crosshair refined: thick outer posts stepping down to fine centre wires. The thick posts draw your eye to the middle and stay visible against dark cover; the fine centre gives a precise aim that covers little of the target. It measures nothing and compensates for nothing, and for shots inside your zero's point-blank range that is its strength.
A stalker shooting inside 150 m, a rimfire shooter on club cards, a boar shot at 40 m: none of them needs a single hash mark. If your shooting lives inside 200 m, a duplex is not the beginner's option; it is the correct one. Burris's Plex, used on scopes such as the Fullfield 3-12x42 Plex, is a classic example, and EOTech's Vudu X 1-6x24 DP1 brings the same idea to an LPVO.
Mil-hash and grid reticles: the measuring instruments
Hash-marked reticles, the modern descendants of the mil-dot, put marks at regular angular intervals along both wires, typically every 0.2 or 0.5 MRAD, or every 1 or 2 MOA. They turn the reticle into a ruler: measure a miss, hold the correction, range a target of known size, allow for wind. "Christmas tree" grids extend this below the centre so you can hold for drop and wind at the same time without dialling. EOTech's SR5 MRAD reticle on the Vudu 1-10x28 FFP is this type.
Two conditions apply. First, these reticles only measure correctly in first focal plane scopes, or at an SFP scope's calibrated power. Second, they need practice: a grid you have never trained with is just clutter. They belong on precision, long-range and foxing rifles where quick follow-up corrections at mixed distances are routine. The units are explained in MRAD vs MOA explained.
BDC reticles: convenient, with fine print
A bullet-drop compensating (BDC) reticle replaces abstract angles with distances: aiming points below the centre for, say, 300, 400 and 500. Hold the 400 mark on a 400 m target and the maker's ballistic assumptions do the sums for you. Burris's Ballistic Plex and SIG's MSR BDC on the TANGO-MSR 1-6x24 work this way.
The fine print is those assumptions. Every BDC is worked out for one type of cartridge, one muzzle velocity, one bullet and one zero distance. Use a shorter barrel or a heavier bullet than the maker assumed, and the 500 m mark might really be a 460 m mark. At carbine distances on large steel targets the error usually disappears inside the target; at longer range or on smaller targets it does not.
The fix costs one range session. Shoot each BDC mark at its distance and record where it really lands with your ammunition, or run your load through a ballistic app and relabel the marks in your head. A checked BDC is a fast, honest system. An unchecked one is a guess etched in glass.
ACSS and combined reticles
Primary Arms' ACSS (Advanced Combined Sighting System) takes a different approach: drop, wind, ranging and moving-target leads in one picture, usually built around a chevron. The chevron is a clever aiming point: its tip is fine enough for precision, yet the shape is big enough to find instantly. Below it sit drop holds with wind marks, and ranging marks sized to a typical target width.
These reticles suit the same shooters as BDCs, such as practical rifle, CSR and general range work to 600 m, and carry the same caveat: verify the holds with your load. They work best in LPVOs and in fixed-power prism scopes, where the fixed magnification keeps the holds correct all the time. See what is the ACSS reticle for the variants.
Other patterns worth knowing
- German #4: three heavy posts (left, right and bottom) and a fine centre. It stands out well against dark woodland and is traditional on European hunting scopes. We do not currently stock a scope with this reticle.
- Illuminated centre dot over a duplex: the modern stalking standard. It adds no clutter by day and gives a precise glowing aim point at last light.
- Ring or horseshoe centres: borrowed from red dots. The eye finds a ring faster than a dot, which is why they anchor many LPVO and prism designs.
| Family | Solves | Best suited to | Main caveat |
|---|---|---|---|
| Duplex / German #4 | Fast, uncluttered, precise aim | Stalking, rimfire, driven game | No measuring or holdover marks |
| Mil-hash / grid | Measured holds and corrections | Precision, long range, foxing | Needs FFP (or the calibrated power) and practice |
| BDC | Distance holds without sums | General centrefire to about 600 m | Assumes a specific load; verify on paper |
| ACSS-style combined | Drop, wind and ranging in one picture | LPVOs, prisms, practical rifle | Same ballistic assumptions; busier picture |
| Illuminated dot or duplex | A visible aim point in low light | Dawn and dusk hunting | Needs truly dim low settings; batteries |
Illumination done right
Illumination is not for making the whole reticle glow. It is for keeping a precise aim point visible when a black reticle disappears against a dark animal at dusk, or for giving an LPVO a dot-like centre in daylight. What separates good designs:
- Truly dim low settings. At dusk your eye is adjusting to the dark; an over-bright dot flares and ruins the precision you bought it for. The bottom two or three settings matter more than the top ten.
- Daylight-bright top settings on LPVOs, where the reticle has to compete with sunlit backgrounds.
- Off positions between settings, so you reach your brightness without clicking through the whole range. SIG's TANGO-MSR Compact, for example, has an off position between each of its 6 settings.
- Centre-only illumination on complex reticles. Lighting the whole grid turns a measuring tool into glare.
And one rule that is easy to state and often ignored: the illumination should sit on a physical reticle, so the scope still aims perfectly with a flat battery. The Burris Signature HD 3-15x44 with the illuminated Ballistic E3 reticle is a good example for stalking, with 6 brightness settings according to Burris.
Expert tip
Judge a reticle at 6 a.m. against a hedgerow, not under shop lights. Under time pressure the eye wants one obvious thing to put on the target, and every extra mark slows you down at the worst moment. A clean reticle you know beats a clever reticle you don't.
For the wider buying decision, read how to choose a rifle scope.
Frequently asked questions
Do BDC reticles work with any calibre?
They are only accurate for the ballistics they were designed around: cartridge, velocity, bullet and zero distance. With a different load the marks correspond to different distances, so shoot each mark once and write down where it really lands.
Is an illuminated reticle worth it for deer stalking?
For dawn and dusk, yes. A fine black crosshair disappears against a dark animal in shadow, and a dim red centre dot solves that. Look for truly low brightness settings and an easy-to-reach off position.
What does a chevron give me over a dot?
A precise point without bulk. The chevron's tip covers almost nothing, so it aims as finely as a tiny dot, while the shape is big enough to find quickly. The body of the chevron does cover some target below the aim point.
Are complex reticles slower up close?
They can be if the design is poor, because a busy grid can hide the aim point. Good combined reticles use a bold illuminated centre, such as a ring, horseshoe or chevron, that dominates the view up close.
Shop this guide
- Rifle Scopes — duplex, BDC, grid and illuminated reticles.
- LPVO Rifle Scopes — BDC, ACSS and mil reticles with daylight illumination.
- Prism Scopes — fixed-power sights with etched reticles.
- Deer Stalking Scopes — plain and illuminated hunting reticles.
