This is also how in big explosions you can see the Shockwave in the air as it pushes water vapor away from it In today’s video we blast a tractor weight with a 50 call I hope you enjoy the video and thanks for watching! The visible breath is most likely the water vapor from the air you took in before shooting, after the 50 BMG freedom seed is shot the Shockwave either pushes or evaporates all water in the air around it briefly, so when you exhale you can see your own water vapor in your breath.