Very informative. 5oo fpe with a lead slug left a large mark on the first bottle but no other damage. It took a FIREARM with a FULL METAL JACKET round in .308(don't know the load) to puncture the bottle(s). While it shows shooting a HPA tank with a firearm is not safe, any tossling around in the back seat, trunk or truck box/bed will do little more than cosmetic damage to the bottle. While previous posts are discouraging of this video, I find it very informative and a bit of an eye opener to the nay sayers of HPA Carbon Fiber wrapped air tanks.