Precision rifle shooting rewards a scope built to hold a zero and dial back to it, hundreds of times, without complaint. If you are choosing your first one, a handful of features matter far more than the rest — and the two that matter most are not on the front of the box. Shop the category in long-range rifle scopes.
Tracking and return-to-zero come first
Everything else on this list is a preference. This is a requirement.
When you dial 5 mils of elevation, the reticle must move exactly 5 mils, and when you dial back down it must return to precisely where it started. A scope that tracks 4.8 mils when it says 5 will put you consistently low at distance, and no amount of good glass compensates for it.
Test it with a tall target test: at 100 yards, tape a plumb-vertical line on a target, zero on a mark at the bottom, then dial a known amount of elevation and fire a group. Measure the actual movement against the expected movement, and check that the group has not drifted sideways from the line. Dial back to zero and fire again to confirm it returns. Do this before you trust the scope with anything that matters — it takes twenty rounds and tells you more than any review.
First focal plane, in MIL
Choose a first-focal-plane scope so your holdovers stay true at any magnification. In a second-focal-plane scope the reticle subtensions are only correct at one power, which is unworkable when a stage has you at 8x on one target and 20x on the next. See FFP vs SFP.
Most of the precision rifle world speaks MIL. Matches are called in mils, spotters call corrections in mils, ballistic apps default to mils, and your shooting partners will give you data in mils. Pick MIL reticle with MIL turrets unless you have a specific reason not to, and never mix units — read MOA vs MIL.
A tree reticle
A grid or tree reticle lets you hold both wind and elevation at a single intersection without touching a turret, which is a large advantage when the clock is running and you have five targets at four distances. It also lets a spotter give you a correction you can apply instantly.
Check the subtensions as well as the pattern: a reticle with 0.2 mil graduations lets you hold finer than one marked every 0.5 mil. See understanding reticles.
Turrets with a real zero stop
Exposed, tactile elevation turrets with a positive zero stop are non-negotiable for a match scope. The zero stop is a mechanical floor: you spin down, it halts exactly at your zero, and you know where you are without counting revolutions or reading numbers in bad light.
Pay attention to how the turret feels. Clicks should be audible and distinctly tactile so you can count them by feel under time pressure. Mushy clicks are a real handicap and are one of the clearest tells between tiers. Look also for a revolution indicator so you cannot be a full turn out, and consider whether you want a locking windage turret — many shooters prefer windage held rather than dialed.
Magnification, tube and travel
A 5-25x covers almost every stage; a 4-16x or 4-20x is lighter, cheaper and entirely adequate for club-level matches. The bottom end matters more than people expect, because positional stages are often easier to shoot at 10x than 20x, and a scope that will not come below 6x is awkward on close targets.
A 34mm or 35mm tube typically provides the elevation travel long range needs — look for at least 25 mils total. Pair it with a 20 MOA canted base so more of that travel is available above your zero. Do not overspend on maximum magnification you rarely use; glass quality, tracking and turret feel all matter more.
Parallax, glass and weight
Side focus is essential at these magnifications, and the ability to focus down to 25 yards or so is useful for close stages. Check the adjustment is smooth and not so stiff that it moves the rifle when you turn it. The procedure is in what is parallax.
Glass quality shows up in mirage reading and in picking small targets out of a dark hillside at 20x. Weight matters less in PRS than in hunting — many competitors deliberately run heavy rifles — but it still has to be carried between stages.
Budget honestly
For a first precision scope, the sensible move is to buy the best tracking and turret quality you can afford and accept merely good glass, rather than the reverse. Glass affects how pleasant the scope is to use; tracking affects whether you hit. Plan on the mount as part of the purchase too — a precision scope on a poor mount is a precision scope with a random error added.
Pair it with a stable bipod (see rifle bipods 101) and mount it carefully using the scope mounting guide. Athlon's Ares and Cronus lines and EOTech Vudu are common first-match scopes worth comparing.