Range Logic vs Zeryn Precision

Stop counting hash marks under pressure. Range Logic draws your exact elevation and wind hold right on your scope's reticle — the way precision and hunting shooters actually run a target. Built around your reticle, your rifle, and the way you really shoot at distance. — SEE YOUR HOLDS, NOT JUST NUMBERS — • Smart Reticle Overlay (Pro): elevation and wind holds drawn directly on your reticle, matched to your scope's subtensions in MIL or MOA. • Reticle Builder (Pro): build any other reticle from its maker's spec sheet and see your holds on it. • Gust Bracketing: base hold and gust hold shown at the same time, so a wind call is one glance instead of two calculations. • Manual Reticle Rangefinder (Pro): range a target off your reticle's subtensions when you don't have a laser. — RUN THE STAGE — • Range Card Stage Planner: lay out every target by distance, direction and angle, get a hold and a wind call for each, then run it in Stage Mode. No signal needed. • Competition stage timer with auto-advance between targets. • Watch DOPE (Pro): push your holds to Apple Watch or Garmin and move target to target without touching your phone. — DIAL IN REAL ACCURACY — • Full ballistic profiles: rifle, ammo, G1/G7 BC, click values, zero conditions. • Truing that fits muzzle velocity and BC to your real impacts at distance, plus Zone Tuning (Pro) to correct one band of range without touching the rest. • Live atmosphere corrections (density, temperature, pressure, humidity). • Optional Kestrel and weather-meter integration (Pro). • Athlon chronograph connection (Pro): measured velocity and SD go straight into your load. — TRAIN UNDER STRESS — • Polar H10 heart-rate and HRV biofeedback (Pro) with a breath pacer, so you learn to break the shot on a calm beat. — YOUR DATA, YOUR DEVICE — • No account required. Works fully offline at the range. • Share complete profiles with a buddy via AirDrop. Free to download with full core ballistics, truing, and reticles. Try every Pro feature free for 7 days. Range Logic Pro is a one-time purchase that unlocks the Smart Reticle Overlay, Reticle Builder, watch sync, reticle rangefinder, Kestrel and chronograph connections, biofeedback training, and unlimited profiles and stages. Built by a shooter, for shooters. Put your actual reticle in your pocket — download Range Logic.

Dope you can trust — whether you shoot a $400 rimfire with iron sights or a custom rig at 1,000 yards. Zeryn Precision is a data app built by shooters, for shooters. It replaces the notebook, the shoebox of range cards, and the guesswork with one place that tracks your rifles, your loads, your groups, and your barrel — and teaches you every concept along the way. Precision doesn't have to cost a fortune. YOUR RIFLES, SET UP PROPERLY Add your rifle and optic once — about five minutes. Scopes or open sights: blade, aperture, globe, ghost ring. Zeryn takes iron sights seriously, so your lever gun gets the same treatment as a match rifle. DOPE YOU CAN DIAL Zeryn builds a full dope table for your rifle and load — drop, wind, spin drift — in MOA or mils, out past 1,000. Then True Your Dope: tell it where your shots actually landed and it corrects the table to match your rifle in the real world. Book numbers get you close. Trued dope gets you hits. QUICK DOPE No profile yet? Pick a caliber and a factory load and get a working table in seconds — honest about its limits, with a clear path to a trued profile when you're ready. FIND WHAT YOUR RIFLE LIKES Run a factory ammo shootout: pick contenders from a library of 1,500+ factory loads, shoot a group per ammo on any target you like, and log the numbers. Zeryn picks the winner and graduates it into a Load — dope table and all. Stop buying bulk before you know it shoots. BUILD YOUR HANDLOAD Full load development workups — charge ladders and seating-depth steps. Shoot your steps on any target, log your groups and ES/SD, and graduate the winning node into a Load. Custom projectiles are welcome, with a BC estimator for when the box doesn't tell you. WATCH YOURSELF GET BETTER Log groups, browse your group history, and track your barrel over time — round counts and throat erosion — so you see accuracy trends and plan the rebarrel before it costs you. WE TEACH AS WE GO This is the part other apps skip. Every info button in Zeryn explains the concept in plain words — barrel length, sight height, twist rate, focal planes, turret travel — like a mate at the bench, not a physics lecture. A reference library covers BC, throat erosion, jump to the lands, reading wind, and estimating velocity without a chronograph. If you've ever bounced off a ballistics app because it assumed you already knew everything, this one was built for you. WHO IT'S FOR New shooters welcome. Iron sights welcome. The .22 you plink with on weekends counts just as much as a match rig. Rimfire to ELR, hunting rifles to long-range rigs — if you put rounds on paper and want them closer together, Zeryn is for you. Zeryn Precision is free. No account required. Your data stays yours.