Exploding target idea (from TheKingOfRandom)

I have the Umarex caps you can purchase at Walmart. I fill a 2 liter bottle to 135 psi and shoot them. However, they are LOUD! If you're not in a rural setting, someone will call the cops.


We used to fill coke bottles with Dry Ice and make a big boom. 

I remember one year getting ready for a camping fishing trip I dropped some in a bottle and tossed it off to the side while we were loading the truck. Wouldn't you know it about the time my dad came out with the ice chest it blew, Dad dropped the ice Chest on his Toes I still do not know what made him madder the fact that he dropped the ice chest on his feet our us kids laughing at him and mom 

I Spent that first week of summer vacation with an extra pillow under my butt... Never realized just how loud a plastic bottle can be when it blows up