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a couple questions about my first shoulderfired pneumatic

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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damage pics

Unread postAuthor: Jaygnar » Fri Sep 25, 2009 11:06 am

Here are some damage pics. I was shooting at a box fairly firmly stuffed with a sporadic mix of newspaper cardboard and low and high density Styrofoam.

The initial shot was a firm foam ball followed by a soft foam ball that was slightly heavier, then a regular golf ball.

All shots were at 80 psi or very near to that figure.
  • 0

80 psi.jpg
Near enough!
80 psi.jpg (23.44 KiB) Viewed 151 times
ball types.jpg
Three balls in the hand, soon in the box!
The dimpled ball is the squishier of the two.
ball types.jpg (24.43 KiB) Viewed 151 times
I stuffed all sorts of stuff in my box!
filling.jpg (26.4 KiB) Viewed 151 times
10-15 feet or so
range.jpg (31.76 KiB) Viewed 151 times
somewhat spongy pen.jpg
This ball was light and not very spongy, more firm than the other foam ball
somewhat spongy pen.jpg (32.37 KiB) Viewed 151 times
very spongy entry.jpg
This is the entry wound just to the right of the previous shot.
This ball was made of a foam that is more squishy* than the other one, It weighed maybe a gram or so more.

*scientific terminology
very spongy entry.jpg (33.77 KiB) Viewed 151 times
very spongy pen.jpg
I got more penetration with the softy!!!
Who would have guessed?!?!
very spongy pen.jpg (27.52 KiB) Viewed 151 times
golfball entry.jpg
The golf ball dislodged the not-so-spongy foam ball by means of its immense concussive impact!
exit wound.jpg
The golf ball exited the box and attempted to burrow into the ground before deciding to run about 30 yards and hide beneath a bush.
exit wound.jpg (35.43 KiB) Viewed 151 times

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