No, but it’s an easy analogy to make.
Let’s talk about rail guns first. HyperSciences’ Ram Accelerator can achieve rail gun velocities without the barrel breakdown they experience. The HyperSciences’ system is much smaller and chemical-based so we can achieve faster repetition (seconds not minutes ). Also, you don’t need a giant power source like a naval reactor to get it prepared for launch.
Now talking about guns. This is not a gun, a gun uses expanding gases that push a projectile forward, they are limited by speed.
We are a ram accelerator (very similar to a RAM/SCAM jet). We set up a pressure wave and ride on it like a surfer riding a surfboard. A gun has single combustion, a ram accelerator can have multiple stages to go faster and faster (much like a RAM/ SCRAM jet). This is a very advanced tech that was proven out at the University of Washington and expanded/commercialized by HyperSciences.