https://www.amazon.com/dp/B07HNYDX51?tag=arfcom00-20
So, some of the synthetic fill I see seems to be listed by oz/cup, but I don't know what that means with regards to a shooting bag. I also am hesitant to cut my existing bags and potentially ruin them until I have a better Idea what my plan is. I am not asking what is the best, what I am interested in is comparisons and opinions of fill and its characteristics. What is the difference between the way a bag works by varying the actual size of the fill, from sand to airsoft bbs to plastic marbles. What does irregular shaped vs uniform fill do for you? What about the density of the fill material, from sand to marbles? If the answer is just go get a walmart beanbag chair and cut it up, so be it, but I would like to discuss options.