HPA cylinder burst test for Air Venturi

Did you ever wonder how the HPA cylinders are tested? They are tested with water. That's right, check it out! It may be boring, but pressures building up inside that tube are incredible (8,000+ PSI)! And in case you were wondering, these guns operate at 3,000 PSI, but the pressure that is applied to all of us at sea level is less than 15 PSI. The burst happens at 2:38! http://www.pyramydair.com/a/Air_guns/Air_rifles/Precharged_pneumatic_PCP/155