It's true that the spin from a centrifugal gun is unlikely to make bullets fly straight, although ironically "impart a bunch of spin on them" is also one of the

It's true that the spin from a centrifugal gun is unlikely to make bullets fly straight, although ironically "impart a bunch of spin on them" is also one of the foremost techniques for making bullets fly straight: https://en.wikipedia.org/wiki/Rifling https://en.wikipedia.org/wiki/Rifling > In firearms, rifling refers to the helical groovings that are machined into the internal (bore) surface of a gun's barrel, for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting. This spin serves to gyroscopically stabilize the projectile by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs.