Make your own bottle blast caps

A plastic bottle pumped up with high pressure air will explode when you shoot it. Just did one with 50lbs in a Dasani bottle. Nice BIG BLAST! First time I've done this. Lots on youtube for your viewing enjoyment.

So far, I've been shooting at the lower half of the bottle so it's the bottom that blows apart. No problem finding the top yet. Making a bunch more now. I drink Dasani water so I have an endless supply however I would like to try a 2 liter bottle. I see people charging them with 100lbs of pressure. You can put powder like chalk line chalk inside for more effect. My wife says I'm easily entertained!

The needle valves for inflating soccer balls and such.

Doesn't need much silicone rubber. This one worked fine on 16oz bottle pressurized to 50lbs.

Just made this short video of the affect of shooting a plastic 16oz bottle charged with 50lbs of air. Sounds like a firearm. Waiting for a donation of some 2 liter bottles.