I was wondering if the double slit experiment with mascroscopic objects has ever been tried. In any course of quantum mechanics, a way to introduce quantum effects is to introduce the double slit experiment. For example, in Feynman lectures, two examples are given, that of a quantum particle going through the slit (which behaves like standard double slit wave interference) and that of bullets which, according to classical intuition would do something else (either make two line patterns or not, but certainly not interference patterns).
My question is, has the classical version of experiment ever been tried with actual macroscopical projectiles? Can't we just set up a machine to throw bullets/golf balls (or if we want to avoid gravitational effects, maybe marbles on a floor) at two slits (in a vacuum)?
We know what would light do. If you use incoherent beams you would have two one slit patterns, but this beats the point, because you are still using waves.
What would the actual pattern be for classical projectiles?
Edit: To be clear, I am not looking to understand quantum mechanics, I was mostly looking for a controlled research experiment on a classical double slit experiment with macroscopical classical (non-wave-like) projectiles.
Edit2: I am not asking if we have observe the interference pattern of larger objects. I am just wondering if anybody has performed a scattering experiment with classical projectiles and two slits, regardless of the wavelength to slit size ratio condition.
Edit3: some users have suggested firearm industry experiments, anybody knows where I could find some examples of those?