Plug-in for random placement in container?

I’m designing a bottle that is going to be filled with oblong pellets. Is there a way to randomly “fill” the bottle with the pellets so they don’t interfere with each other? I could go in and place them by hand, but it’s like 45 pellets and wouldn’t be very accurate. I wasn’t sure if there was a plugin or feature in Rhino that I was unaware of that could do this. I know Keyshot has a similar feature, but I need to be able to do it inside Rhino so I can measure volume etc.

Also, I don’t use Grashopper and was hoping there was a quick and easy way to do this without a crazy learning curve.

Any info would be appreciated. Thank you!