Key takeaways
- Confirm that the turret clicks are consistent and tracking is repeatable.
- Check that the parallax adjustment covers the distances you shoot.
- Look for an illuminated reticle if you shoot in low light.
For long range shooting, look for a variable power scope with enough magnification, repeatable turrets, a clear reticle, and good glass, along with a mounting system that holds zero. The right choice depends on your distance, the type of shooting, and your budget, and mounts and rings matter as much as the optic itself.
This guide covers general optic features only. Follow all laws, range rules, and safety practices for firearms in your area, and consult qualified instructors or the rifle and scope manuals for specific guidance.
Magnification Range and Objective Size
Long range scopes usually offer a variable power range, such as 5-25x or 4-16x, so you can use lower power for acquiring targets and higher power for precision. More magnification is not always better; heat mirage and reduced field of view can limit practical use at the highest settings. A mid-range zoom that suits your typical distance is often more useful than a huge top-end number.
Objective lens size affects light gathering and field of view, but larger lenses add weight and require taller mounts. A 50 to 56 mm objective is common on long range scopes, while smaller sizes keep weight and cost down.
First Focal Plane or Second Focal Plane
| Feature | First focal plane (FFP) | Second focal plane (SFP) |
|---|---|---|
| Reticle size | Scales with magnification | Stays the same size |
| Holdover accuracy | Accurate at every power | Accurate at one specified power |
| Low power use | Reticle may look thin | Reticle stays bold |
| Typical use | Tactical and long range precision | Hunting and general shooting |
FFP is popular for long range work because holdovers and ranging remain correct at any magnification. SFP scopes can be simpler and offer bolder reticles at low power, which some shooters prefer for mixed use.
Reticles and Turrets
Reticles come in MIL or MOA, and you should choose the system that matches your turrets. Matching reticle and turret units, such as MIL/MIL or MOA/MOA, makes corrections intuitive. Pick a reticle with clear hash marks and holdover references, but avoid overly busy patterns that clutter the view.
Turrets should click positively and track accurately. Look for exposed, tactile turrets for fast adjustments, a zero stop to return to your baseline quickly, and a revolution indicator so you know which turn you’re on. Check the total elevation travel to ensure you have enough adjustment for your longest distance, often listed in MIL or MOA.
- Confirm that the turret clicks are consistent and tracking is repeatable.
- Check that the parallax adjustment covers the distances you shoot.
- Look for an illuminated reticle if you shoot in low light.
Glass Quality, Tube, and Durability
Optical clarity separates good scopes from average ones. Quality glass with multi-layer coatings provides better contrast, color accuracy, and low-light performance. Cheaper scopes may show edge distortion or chromatic aberration at high power.
A one-piece tube, commonly 30 mm or 34 mm, adds strength and more internal adjustment range. Look for waterproof, fog-proof, and shockproof ratings, typically through nitrogen or argon purging and O-ring sealing. Warranty and service reputation matter, since a scope that cannot be repaired easily is a poor investment.
Mounts, Rings, and Accessories
A scope is only as stable as its mount. Choose strong rings matched to your tube diameter and a base or rail that fits your rifle. Many long range setups use a rail with built-in cant to give extra elevation travel. Torque all fasteners to specification and consider thread locker where recommended. A search for 30mm Picatinny scope rings shows common options, but check height and fit against your scope’s objective.
Other accessories include a sunshade to reduce glare, a bubble level to prevent cant errors, and flip-up lens covers. A scope bubble level is a small, inexpensive addition that helps prevent the common mistake of tilting the rifle, which causes misses at distance.
Budget and Practical Advice
Prices range widely. Entry-level scopes can serve beginners practicing at moderate distances, while higher-priced optics deliver better glass, tracking, and long-term reliability. Because the optic and the mount work as a system, avoid pairing an expensive scope with cheap rings.
- Define your typical distance and purpose.
- Choose a focal plane and reticle that fit your style.
- Prioritize tracking and glass over extreme magnification.
- Budget for quality mounts and a level.
- Practice at the range and learn your scope’s adjustments with a qualified instructor if you are new.
Parallax and focus settings also deserve attention. Parallax adjustment removes the apparent shift of the reticle when your eye moves behind the scope, which becomes more important as magnification and distance increase. Side-focus knobs are easier to reach than adjustable objectives. Make sure eye relief is long enough to be comfortable and safe with your rifle’s recoil, and take time to set the diopter so the reticle appears sharp.
Lastly, learn to use your scope. Practice with ballistic calculators, record data about your loads, and verify your zero regularly. A good optic can only help if you understand how to apply its adjustments. Range time, safe handling, and training from an experienced shooter are worth more than any gear upgrade.
Frequently Asked Questions
How much magnification do I need?
It depends on your distance and conditions. Many shooters find 15 to 25x enough for long targets, with lower power for flexibility.
Should I choose MIL or MOA?
Either works. The key is to match the reticle and turrets and choose a system you understand well.
Is an expensive scope necessary?
Not for everyone. Reliable tracking and good mounting matter most, and mid-priced scopes can serve many shooters well.
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