247Hunter · Precision rifle & hunting
Your rifle's ballistics, in clicks — for today's air, at any distance.
A full ballistic solver on your phone. Pick your bullet from the makers' own data, put in your chrono speed and zero, and 247Range gives you the hold in MOA, MIL, centimetres and clicks — corrected for temperature, pressure, altitude, slope and wind, and trued to how your rifle actually shoots.
On Google Play and the App Store now · the handheld device is in development
Everything for the shot, on one screen
The ballistic solver puts the inputs, the weather, the rifle and the answer on a single screen — no scrolling, no menus. Change the distance and the hold updates as you type, and it opens where you left it last time.
- The hold four ways — up/down and left/right in MOA, MIL, centimetres at the target and turret clicks, side by side
- Slope from the camera — aim the phone's camera at the target and it reads the angle, up or down, straight into the solution
- Wind on a clock — tap or drag anywhere on the dial, in quarter-hour steps; head and tail winds count too
- Weather and rifle at a glance — tap either box to change it and come straight back
- Live wind from a WEATHERmeter — pair the Bluetooth wind meter and the wind box follows it second by second New
- Switch rifle or bullet in one tap — every rifle with its loads, from the solver, Stages or the Range tab
Under the hood: a point-mass solver with G1 and G7 drag, the real atmosphere (temperature, station pressure, humidity), your zero and sight height, spin drift, Coriolis, head/tail wind and slope. Checked against an independent open-source solver to within a few hundredths of a MOA. How it calculates →
See the hold on your own reticle
Rather hold than dial? The app draws your scope's actual reticle with the dot where the bullet will land — and your gong at its true size behind it, so you see exactly how much room there is.
- Real reticles — Leupold PR1, PR2, PR3, CCH, TMR and Impact; Vortex EBR-2C and EBR-7C; Arken VPR and VHR; MIL and MOA, drawn from the makers' own subtension sheets New
- Distances on the tree — each hold row shows the range it's for with your load and today's air, like a drop chart printed on the glass New
- Your target, to scale — a 20, 30 or 45 cm gong (or any size) drawn at its true size for the distance
- Full hold or wind only — dial the elevation and hold the wind, or hold both; zoom in to read the marks
- Kept per rifle — each scope remembers its reticle
For first focal plane scopes, where the marks are true at any magnification. Second focal plane reticles are marked as true at full power only.
Trued to how your rifle really shoots
A published BC is the maker's average from their barrel. Yours flies a little differently. Shoot once at distance, tell the app what elevation actually hit, and it adjusts the BC so every other distance follows your real drop.
- BC truing — your chronograph speed is kept, the BC is corrected. Or true the speed instead if you have no chrono
- Enter it your way — clicks, MOA or MIL; the app shows its own number next to yours
- Honest warnings — too close to the zero, or a single click worth too much BC at that distance, or a correction big enough to point at the scope or zero instead
- Today's air, every time — trued once, the card still corrects for the weather on the day
700+ reloading bullets, from the makers' own data
Search by calibre, weight or name — 6.5 140 eld, 308 berger hybrid — and the bullet's weight, BC, diameter and length fill in. Taken from the 2026 Berger, Hornady, Lapua and Sierra catalogues.
- Only bullets that fit — the list filters to your rifle's calibre, and a wrong-diameter bullet needs an explicit "use anyway"
- G7 where it's published — G1 otherwise; Berger's minimum twist is checked against your barrel
- Stability worked out for you — from bullet length and your twist, for the spin drift
- Gordon's Reloading Tool — import a .grtload or .projectile file for any bullet not in the list
Know your chance before you break the shot
The app fires 10 000 simulated shots with the small errors every real shot has — your speed spread, your group, how well you read the wind, how the range was measured — and tells you how many hit the gong.
- First-round hit chance on the gong size you pick — per stage position too
- Biggest risk — names the error costing you the most hits, so you know what to fix
- Max range — the farthest distance that still gives the chance you choose
- Your own numbers — type in your speed SD and group size, or take them straight from your chrono data with Pro
Range card, hunting limits and a level
Everything for the shot you take once — printed on a card, checked against your limits, with the rifle held level.
- Range card — any distances and step, with clicks, wind, speed and energy; share it as a picture for the stock or the bag New
- Point-blank range — for your vital zone: hold dead-on from here to there, and the zero that stretches it furthest New
- Energy & speed limits — set a minimum for the bullet; the solver warns past it New
- Powder temperature — muzzle velocity follows the temperature when you give it your load's sensitivity
- Anti-cant level — the phone on the rail shows the cant and what it does to the shot at your distance New
The air you're actually shooting in
Bullets fly differently on a hot Free State afternoon than at the coast in winter. 247Range corrects for it.
Weather here
One tap pulls temperature, pressure and humidity for where you're standing, from MET Norway's free forecast service.
Phone barometer
Most phones measure station pressure directly — the most accurate input for the solver, no internet needed.
Compass & latitude
Shot direction and latitude for Coriolis, with magnetic declination worked out for you.
WEATHERmeter
Pair a WeatherFlow WEATHERmeter over Bluetooth: temperature, pressure, humidity and live wind straight into the app.
Rifles, loads and your chrono — all tied together Loads & chrono: Pro
Each rifle holds its loads; each load is one bullet and recipe, with its own DOPE card. Switch bullets in one tap and the solver follows.
- Garmin Xero & LabRadar — share the session from the ShotView or LabRadar app straight into 247Range (LabRadar's .zip works as is). Pick the bullet; average, SD and ES are saved with it
- Chrono speed to the solver — one tap sets the DOPE card's muzzle velocity from your measured average
- Full load records — bullet, powder and charge, primer, brass and firings, COAL and trim length
- Gordon's Reloading Tool — import a .grtload and the load fills in, ladder steps included
247Range Pro: loads, group analysis, the reloading bench and NRL Hunter Available now
For the handloader and the competitor. Pro adds your loads and chrono data, group analysis from a photo of your target, a Bench that knows what's on the shelf and what every round costs, and the NRL Hunter stage timer.
Loads & chrono
Every load with its recipe and DOPE card, one tap from the home screen. Garmin Xero and LabRadar sessions straight in, with average, SD and ES, and the load that's in the rifle today switches the solver.
NRL Hunter
The 4-minute NRL Hunter stage: range each position, dial it and score hits, with rules you can set for your own club's match.
Group analysis
Photograph the target, set the scale and tap the holes: group size in MOA and MIL, mean radius and the clicks to centre it. Share the picture with the numbers on it.
Ammo on hand
Each load counts the rounds you've loaded and fired, so you know what's left in the box before you head out.
Stock with warnings
Powder in grams, primers, bullets and brass in pieces. Set the level you want a warning at, and the Bench tab shows a red count when something runs low, before you're out the week of a hunt.
Load a batch
Say how many rounds you loaded. The powder, primers and bullets come off the shelf, the rounds go into that load's ammo on hand, and rounds fired on the rifle come off again. Made a mistake? Undo puts it all back.
Cost per round
Enter what you paid for each pack and the app works out what one round costs, part by part. Brass is spread over the number of firings you get from a case.
R199 once-off, VAT included. No subscription. The solver and everything else not marked Pro stays free. Pro data stays on your phone and goes into your backup like the rest of your cards.
Free or Pro
| Feature | 247Range | Pro |
|---|---|---|
| Solver | ||
| Ballistic solver: MOA, MIL, cm and clicks · G1 / G7 · multi-BC | ✓ | ✓ |
| BC or speed truing from a shot at distance | ✓ | ✓ |
| Spin drift, Coriolis, aerodynamic jump, two wind zones, moving targets | ✓ | ✓ |
| First-shot hit chance with biggest risk and max range | ✓ | ✓ |
| 1,200+ reloading bullets from the makers' data | ✓ | ✓ |
| Reticle hold-overs (Leupold, Vortex, Athlon, Arken) with range on each row | ✓ | ✓ |
| In the field | ||
| Weather here, phone barometer, WEATHERmeter and Calypso live wind | ✓ | ✓ |
| Range card, point-blank range, energy limits, anti-cant level, camera slope | ✓ | ✓ |
| Stages with per-position hit chance, sent to the handheld | ✓ | ✓ |
| Ranging off 18 South African game species | ✓ | ✓ |
| Rifles, DOPE cards, sessions, calculators | ✓ | ✓ |
| Backup to a file or to the cloud with Google sign-in | ✓ | ✓ |
| NRL Hunter stage: range, dial, score in 4 minutes | – | ✓ |
| Reloading | ||
| Loads: recipes per rifle, the load in the rifle today, one-tap LOADS button | – | ✓ |
| Chrono import: Garmin Xero and LabRadar, speed and SD into the solver | – | ✓ |
| Reloading bench: powder, primers, bullets and brass with low-stock warnings | – | ✓ |
| Group analysis: photo of the target, group size, mean radius, clicks to centre, share | – | ✓ |
| Batches, ammo on hand and cost per round | – | ✓ |
| Price | Free, no adverts | R199 once-off US$15 outside South Africa |
Walk the stage, position by position
Build a course of fire as positions — a distance, wind and gong size for each. Every position is solved into clicks with its own hit chance, and the banner shows exactly which rifle and bullet it's solved for.
- Whole plan on one screen — every position's distance, dial and hit chance
- Full-screen stepper — big numbers, one position at a time, during the course of fire
- Push to the device — send the plan over Bluetooth and step through it on the rifle
Ranging off game with your reticle
No laser? Pick the animal, measure its body length or chest depth in your reticle, and the app gives the distance — and the hold.
- MOA or MIL reticles — read it in whichever your scope uses
- 18 South African species — springbok to eland, with a drawing of exactly where to measure New
- Calibrate your own animals — laser one once and the app remembers the real size
- The hold comes with it — the range goes straight into your DOPE for the clicks
Game sizes vary 10–15% between animals; the app says so and suggests a laser for the shot that counts.
And on the rifle: the 247Range device
A pocket handheld that pairs with the app over Bluetooth: the stage plan on the rifle, a live cant bubble while you aim, and ranging with no phone in the loop. Real firmware on real hardware; still being refined ahead of a production build.
U 9.5 MOA
U 13.8 MOA
U 17.3 MOA
U 21.0 MOA
Stage on the rifle
Sent from the phone. Every position's distance and dial on one screen — tap one to make it active.
Cant bubble while you aim
A canted rifle walks shots sideways, more the farther you shoot. Green inside your tolerance, red past it.
Works on its own
Big touch targets you can use with gloves on. A slim built-in rechargeable battery, charged over USB-C.
Get 247Range
247Range
Free
No adverts, no subscription, no account.
- Ballistic solver: MOA, MIL, cm and clicks, G1 / G7, multi-BC, truing
- First-shot hit chance, spin drift, Coriolis, two wind zones
- DOPE cards, range cards, stages sent to the handheld
- Weather here, phone barometer, WEATHERmeter and Calypso wind
- Reticle hold-overs, game ranging, level and slope
- 1,200+ bullets, rifles, sessions, calculators, cloud backup
247Range Pro Available now
R199 once-off
VAT included · about US$15 outside South Africa. No subscription. Unlock it inside the app.
- Everything in Free, plus:
- Loads & chrono: recipes per rifle, Garmin Xero and LabRadar import
- Group analysis: photo of the target, group size, clicks to centre, share
- Reloading bench: stock with low-stock warnings, batches, cost per round
- NRL Hunter: range, dial and score the 4-minute stage
Android 12 or newer · iPhone with iOS 16 or newer · made by 247hunter.co.za
Questions
What do I need to set up for good numbers?
Your bullet (pick it from the library), your muzzle velocity from a chronograph, your zero distance and scope height, and the barrel twist. Set the weather on the day. Then shoot once at 600 m or farther and "true" the card — from then on the app follows your rifle. Each screen has ⓘ buttons that explain what's needed.
Do I need signal in the field?
No. The solver, your cards and stages all work offline. Signal is only needed for the "weather here" button — the phone's barometer works without it.
Which chronographs can I import from?
Garmin Xero (ShotView app) and LabRadar — share or export the session and pick 247Range. Any CSV with a velocity column works too, or type the speeds in. Chrono data is saved on a load, which is part of 247Range Pro.
How does it compare to other ballistic apps?
It's built on the proven point-mass method with G1 and G7 drag, with BC truing and reticle hold-overs with range marks. On top of that it has a built-in bullet library that blocks the wrong calibre, first-shot hit chance, Garmin and LabRadar chrono import, stage plans, range cards with hunting limits — and a matching handheld for the rifle. And it's free.
Which reticles are in the app?
Leupold PR1, PR2, PR3, CCH, TMR and Impact; Vortex EBR-2C and EBR-7C; Arken VPR and VHR; Mil-Dot; and plain MIL and MOA grids you can set up to match any scope. More are added as we get the makers' drawings — tell us which one you use.
MOA or MIL?
Both. Every answer shows MOA, MIL, centimetres and clicks; each DOPE card has its own turret click value — ¼ MOA, ⅛ MOA, 0.1 MIL or 0.05 MIL.
Is it really free?
Yes. The solver, reticles, truing, bullets, hit chance, stages, range cards, ranging and backup are free, with no adverts or account. Pro adds the handloading and competition extras on top — see Free or Pro.
What's in 247Range Pro?
Loads and chrono import (Garmin Xero, LabRadar), group analysis from a photo of your target, the reloading bench (stock with low-stock warnings, batches, ammo on hand, cost per round) and the NRL Hunter stage. R199 once-off, VAT included (US$15 outside South Africa), no subscription. Unlock it inside the app on Android or iPhone: tap LOADS or NRL HUNTER, or About → Get Pro. Bought it before? Use Restore purchase on the same screen. If you already have loads in the app, they're kept and their DOPE cards keep working.
When can I buy the device?
It's in development and running on real hardware. Keep an eye on this page, or contact us through 247hunter.co.za.