Casio makes a series of high speed cameras the have the capability of recording at 1200 FPS..would that be fast enough?

Here is a sample of frame capture from a Casio camera.

3/5 scale model of Paixhans 500kg Monster mortar as 11 inch diameter projectile leaves the barrel.

Don't know if the camera would catch the bullet going down a thin barrel. It might be just a little to slow or not.

Bullet traveling at 1200 fps, might catch 2 frames of a 24 inch barrel, or one frame at 2400 fps in a 24 inch barrel