Its A PLASTIC BOTTLE I use deer park bottles that are pretty cheap and flexible and if the thing would go straight I wouldn't mind getting hit in the head unless a pro football quarterback threw it or in the eye
but fullmetaljacket you do have a good idea on making it out of allunim foil,
I did a test dropping them off my deck the bottle was a quarter full of flour the a plastic wrap held the flour in but Prevented the bottle from crushing, after a test or 2 the flour loosened the wrap and made it slip off but there was no cloud just a small, star shape of flour on the patio maybe ¾ full.
DK I acknowledge what you’re saying however the acceleration of the bottle would cause the most of the flour to fly to the back of the bottle. The coke bottle was suggested so you can cut along the groves, you’re probably right that it is too hard but deer park makes thin bottles that are very flexible, the bottles are for area damage and fire/flour support ha ha fire support flour support, wow that sucked… so you don’t want to get hit either way even with bbs and paintballs. And the weight of the flour acts as a separate object during impact as it flies forward and out though the widen slits of the crushing bottle. Finally I am aware of the trouble of shooting it out of a cannon that’s why I need your input
sorry my reply is so long