Impact Ballistics
Sports · TRACT Optics
Impact Ballistics screenshots
Working out where a bullet lands at distance is the part of rifle shooting that rewards preparation and punishes guesswork. Drop changes with the cartridge, the load, the sight height, the wind and the weather on the day, and a printed table that ignores any of those variables stops being useful the moment conditions shift. Impact Ballistics is a paid Android app from TRACT Optics that sets out to handle that arithmetic for you, and its focus is narrow enough to be worth examining closely.
The app costs $2.99, carries no advertising and offers no in-app purchases, so what you pay at the store is the whole arrangement. It holds a 3.7 average from 28 ratings, with more than 1,000 installs since it arrived in September 2021. TRACT Optics has kept it updated, most recently in July 2026 with additional cartridge and ammunition entries.
Pairing a reticle with a cartridge
The core of the app is a matching exercise. You choose your TRACT rifle scope, then choose your ammunition, and the software works out the bullet drop in terms of the reticle you are actually looking through. That last part matters more than it might sound. A drop figure in inches is an abstraction at the range; a holdover point on the glass in front of you is something you can act on immediately.
To make those matches possible, TRACT Optics has assembled what it describes as one of the most comprehensive ammunition databases available, drawing on the catalogs of modern manufacturers. You can also type in the ballistic coefficient and muzzle velocity for a round that is missing. That escape hatch is the difference between a useful tool and a dead end for anyone shooting something unusual or handloading their own ammunition.
The calculations run out to 2,500 yards, which covers far more distance than most shooters will ever have access to. Selectable units include meters or yards, and the app accounts for spin drift and sight height rather than treating them as fixed. Wind direction and speed feed into the results too, expressed in inches, MOA or MRAD depending on how you prefer to think about correction.
Cards you can carry to the firing line
A phone is not always the thing you want to be looking at when you are settling behind a rifle, and the app addresses that with printable output. The BDC card gives you a cheat sheet showing bullet drop at each magnification, which is the format that makes sense for second focal plane scopes where the reticle subtensions change as you zoom. The dope card goes further, laying out velocity, energy, path, drop, wind drift, time of flight and click values in MOA or MRAD.
Those dope figures are broken down in 5, 10, 25, 50 and 100 yard increments, so you can print the resolution that matches how you actually shoot. A hunter working at unknown distances may prefer the coarser spacing; a target shooter with known yardage markers can take the finer one. There is also a load comparison option for weighing one cartridge against another before committing to a batch.
The sight setting section solves a problem that comes up constantly at fixed-distance ranges. If the only facility near you stops at 100 yards but you want your rifle zeroed at 200, the app shows where the bullet needs to strike on the closer target to achieve that. It is a small feature that saves a trip to a longer range, and it is the kind of thing that separates a genuine shooting tool from a generic calculator.
Conditions, weather and the numbers behind the shot
Atmospheric conditions change point of impact, and the app handles them two ways. It can pull current weather automatically through a link to World Weather Online, or you can type in temperature, altitude, barometric pressure and humidity yourself in the Conditions section.
Alongside the atmosphere, the Conditions area takes wind speed and direction and returns drift figures in the unit you have selected. A drag table is available for shooters who want to see how the projectile behaves over its flight rather than just at the endpoint. These are the variables that decide whether a shot connects, and the app keeps them in one place rather than scattering them across separate screens.
What you need before the first calculation
Setup is a matter of identification rather than configuration. You pick your scope from the TRACT range, pick your ammunition from the database, and the app does the rest. There is nothing to calibrate. If your round is missing, the alternative is to supply the ballistic coefficient and muzzle velocity, which means having those figures to hand before you start.
The app is built to produce ballistic data without an internet connection, which is the sensible choice for something used in the field where signal is unreliable. The connection only becomes necessary for the Learn section, a library of videos, articles and blogs. It deals with scopes for rifles, binoculars and spotting, plus videos and tips on using an optic well.
The same section lets you browse and buy TRACT Optics and accessories from inside the app. New ammunition information, product releases and videos are added over time, and the July 2026 update brings entries such as 6.5 WBY RPM and several 2026 ammunition lines from Weatherby, Herters, Norma, Federal and Winchester.
Where this fits in a shooter's kit
The app is built around TRACT rifle scopes, which shapes who gets the most from it. If you shoot one of those optics, the reticle matching is the whole point and the rest of the toolset supports it. If you shoot a different brand, the ballistic calculator, dope cards and sight setting tools still work from your own cartridge data, but the reticle-specific convenience is not there.
The range of the toolset suggests two broad audiences. One is the experienced long-range shooter who wants drop, drift and click values in a printable format and will use the load comparison and drag table. The other is someone newer to distance work who benefits from the Learn library and from having the calculations done rather than attempted by hand. The developer pitches the app as suitable for both ends of that spectrum.
The price is a single $2.99 with no advertising and no in-app purchases, which puts it in a different category from free calculators that interrupt the experience. The 3.7 average from 28 ratings is a modest sample.
A focused tool for TRACT shooters
Impact Ballistics does one job and does it in detail: turning a scope, a cartridge and a set of conditions into numbers you can use on a firing line. The ammunition database, the manual entry fallback, the printable BDC and dope cards and the sight setting calculator all serve that single purpose, and the offline data generation means it works where you need it most.
It is worth installing if you shoot a TRACT scope and want reticle-specific drop data without a subscription, or if you shoot something else and want a capable ballistic calculator with printable output for a one-off $2.99. The Learn library and the in-app shop are extras that add value for anyone buying optics or learning the fundamentals. If you are looking for a broad shooting companion rather than a calculation tool, this is a narrower instrument than that.
The short verdict
A focused $2.99 ballistic calculator that shines for TRACT scope owners and offers printable dope cards to anyone else.
What's new in version 1.4.6
- Cartridges Added: 6.5 WBY RPM - New 2026 Ammo Added: Weatherby, Herters, Norma, Federal 6.5 Creedmoor +Peak, Winchester Supreme Long Range
App specs
- Version1.4.6
- UpdatedJuly 6, 2026
- Downloads1K+
- RequiresAndroid 6.0+
- Price$2.99
- Age ratingMature 17+
Impact Ballistics: frequently asked questions
What does Impact Ballistics actually calculate?
It works out bullet drop for a chosen scope and cartridge, then presents the result in terms of your reticle. Beyond drop, it covers velocity, energy, path, wind drift and time of flight, along with click values in MOA or MRAD. Calculations run out to 2,500 yards.
Can I use it with ammunition that isn't in the database?
Yes. The app lets you add a round by entering its ballistic coefficient and muzzle velocity, after which it calculates drop information the same way it does for listed ammunition. That covers handloads and less common factory cartridges.
Does it need a signal to work at the range?
The ballistic data is designed to be produced without an internet connection, so the core calculations are available in the field. A connection is only needed for the Learn section, which holds the videos, articles and blogs.
How does the weather import work?
Current conditions can be fetched automatically through a World Weather Online link. If you would rather not rely on that, you can enter temperature, altitude, barometric pressure and humidity yourself in the Conditions section.
What is the sight setting section for?
It helps when you want a rifle zeroed at a distance longer than your available range. If you can only shoot at 100 yards but want a 200-yard zero, the app shows where the bullet should impact on the closer target to achieve it.
Pros
- Matches TRACT scope reticles to cartridges automatically
- Manual entry for rounds missing from the database
- Printable BDC and dope cards for field use
- Ballistic data works without an internet connection
- No ads and no in-app purchases
Cons
- Reticle matching centers on TRACT rifle scopes
- Learn videos and articles need a connection
- Small rating sample of 28 ratings
- Mature 17+ content rating
Download Impact Ballistics
by TRACT Optics
$2.99 · Official store listings