How to Sight In a Rifle Scope: Step-by-Step First-Time Guide

Understanding the key specs on your scope will help you sight in more efficiently. MOA (minute of angle) turrets move your point of impact approximately 1.047 inches per click at 100 yards — most US hunting scopes use 1/4-MOA clicks, so four clicks equal roughly one inch at 100 yards. MRAD (milliradian) turrets move the reticle 0.1 mil per click, which equals 1 centimeter at 100 meters or about 0.36 inches at 100 yards — ten clicks equal 3.6 inches. Either system works; the important thing is knowing which system YOUR scope uses before you start adjusting. Check the turret cap markings or your manual. If you have a first-focal-plane (FFP) scope, the reticle subtensions are accurate at every magnification, which is useful for holdover confirmation at distance. If you have a second-focal-plane (SFP) scope, the subtensions are only accurate at one specific magnification (usually the highest), which matters if you plan to use reticle marks for range estimation rather than dialing the turrets.

Budget tiers in 2026 break down roughly as follows. Entry-level scopes in the $100-$250 range — such as the Vortex Crossfire II, Bushnell Banner 2, or budget Leupold Freedom lines — deliver clear glass and reliable tracking for hunting at moderate distances. Mid-range scopes from $250-$700 — like the Vortex Viper series, Leupold VX-3HD, or Bushnell Nitro — add features like zero-stop turrets, better multi-coated glass, and tighter manufacturing tolerances for more repeatable click tracking. Premium scopes above $700 from Leupold, Vortex Razor, and specialty makers offer top-tier optical clarity, bombproof repeatability, and advanced features like locking turrets and illuminated reticles. For a first-time sighting-in, the scope's price tier does not change the procedure — but it does affect how confidently you can trust each click to land exactly where it should.

The most common mistake beginners make is starting at 100 yards without bore-sighting first. If your scope is significantly off-bore, your first shots at 100 yards may miss the entire target backer, wasting ammunition and causing frustration. Always start at 25 yards after bore-sighting. A second frequent error is over-torquing the ring screws: most aluminum rings need only 15-25 inch-pounds, and steel rings typically 25-35 inch-pounds depending on the manufacturer. Over-tightening can dent the scope tube, crack a ring, or warp the erector assembly inside the scope. Always use a torque wrench and follow the ring manufacturer's specification — not the scope manufacturer's, unless they are the same. A third mistake is adjusting between every single shot instead of firing a group, assessing the center of the group, and then making one calculated correction.

In the US market, Amazon.com carries a wide selection of scopes, rings, mounts, torque wrenches, and laser bore-sighters from Vortex, Leupold, Bushnell, and most other major brands. OpticsPlanet is another strong option with deep inventory and frequent bundle deals on scope-and-mount combinations. When purchasing rings and mounts, match the tube diameter (most hunting scopes are 1-inch or 30mm; some tactical and premium optics are 34mm) and the base style to your rifle's receiver (Picatinny/Weaver rail, Remington 700 two-piece bases, Tikka proprietary rail, etc.). If you are mounting on an AR-15-platform rifle, note that Amazon has specific policies around firearm-related parts and accessories — availability can vary, so verify listings carefully before ordering.

Matching your scope choice and zero distance to your actual use case prevents wasted effort. A hunter sitting in an Eastern treestand at 60-80 yards does not need a 5-25x FFP scope with exposed tactical turrets — a lightweight 3-9x40 SFP with a simple duplex reticle, sighted in at 100 yards, covers that scenario perfectly. A Western hunter taking shots across open sagebrush at 200-400 yards benefits from more magnification (4-16x or 5-25x), an MOA or MRAD reticle with holdover marks, and a 200-yard zero. A rimfire shooter plinking at 25-75 yards needs a parallax-adjustable scope set for short range (many centerfire scopes have a fixed parallax at 100 or 150 yards, which creates parallax error at closer distances). Air-rifle shooters using sub-12 ft-lb springers should stay within 50-75 yards and use scopes rated for springer recoil — standard centerfire scopes can be damaged by the unique reverse-recoil pulse of a spring-piston airgun.

The brand landscape in 2026 remains strong for US buyers. Vortex continues to dominate the value-to-performance conversation with an unconditional lifetime warranty and a lineup spanning every price tier from the Crossfire to the Razor HD Gen III. Leupold, manufactured in Beaverton, Oregon, appeals to hunters who value lightweight American-made glass and the proven CDS (Custom Dial System) turrets for specific cartridge drops. Bushnell offers aggressive pricing and solid performers like the Engage and Nitro lines. Pulsar, primarily known for thermal and digital night-vision optics, is increasingly relevant for US hunters in states that permit thermal-equipped hunting — their Thermion 2 and Merger LRF lines represent a distinct category outside traditional daylight optics. Regardless of brand, the sighting-in procedure below applies universally to any modern riflescope with adjustable turrets.