STC - Shotgun Ballistics is a set of tools developed by MaroChass for hunters and skeet shooters to assist them in understanding the use of different types of cartridges and chokes. The program consists of four modules that provide users with a range of tools to help them improve their shooting skills.

The ballistic calculations module allows users to calculate the speed, flight time, drop, and energy of their shots. The impact patterns module provides users with simulated impact patterns for different cartridge and target types. The lead module calculates the distance to be advanced for a transversal moving target. Finally, the animations module provides users with explanatory videos to help them understand the concepts behind the program.

STC - Shotgun Ballistics is an essential tool for anyone serious about improving their shooting skills. The program is easy to use and provides users with accurate and reliable information. Additional modules are currently being developed, and users are encouraged to download the application, test its functionalities, and provide feedback to the developer.