About
Accurate, and easy to use.
SureHold exists to give shooters a ballistic solution they can trust and actually enjoy using. Most apps hand you a number and leave you wondering whether it is right. We want the number to be right, and the app to get out of your way.
Accurate
Standard G1 and G7 drag models, full atmosphere with humidity and density altitude, spin drift and Coriolis. The solver is checked against an independent one, and your own range log trues the numbers to where your bullets actually land.
Easy
It remembers your rifle and load, fills in local conditions for you, works with no signal at the range, and speaks imperial or metric. Less typing, fewer mistakes.
Honest
Predictions are estimates, and we say so. SureHold never suggests loads or powder charges: you log your own, and you follow published load data and safe practices.
How it learns your rifle
Every rifle and load is a little different from the box. Log a range day: what you dialed, where it hit, and the conditions. SureHold uses those shots to refine your real muzzle velocity, your ballistic coefficient and how your load reacts to temperature, so your predictions improve the more you shoot, from sea level to high country.
Your data
Your rifles and range days belong to you and are visible only to your account. Your location is used only to fetch local weather, when you ask for it or open a new range day, and it is not stored.
Who runs SureHold
SureHold Ballistics is operated by Brown Trout Holdings LLC, a Wyoming limited liability company. Questions about your account, billing or privacy go through the contact page.
Got an idea or found a problem?
SureHold gets better from what shooters tell us. Say what would make it more accurate or easier to use.
Contact us