Today I did a little pre-production testing for the next Bigfoot movie. I have a bazooka in the script and figured I'd be doing all the SPX in post. I used Particle Illusion 3 to make the explosion and smoke trail from the barrel. Next time I'll add a shell (not to mention a projectile prop).
Here's a test clip. I think it's gonna work fine! (hope I don't have to explain the bazooka out there in the woods on film days).