a couple questions about my first shoulderfired pneumatic

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
Jaygnar
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Posts: 11
Joined: Sat Sep 19, 2009 1:06 pm

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.
Attachments
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.
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 633 times
The golf ball dislodged the not-so-spongy foam ball by means of its immense concussive impact!
The golf ball dislodged the not-so-spongy foam ball by means of its immense concussive impact!
I got more penetration with the softy!!!<br />Who would have guessed?!?!
I got more penetration with the softy!!!
Who would have guessed?!?!
very spongy pen.jpg (27.52 KiB) Viewed 633 times
This is the entry wound just to the right of the previous shot.<br />This ball was made of a foam that is more squishy* than the other one, It weighed maybe a gram or so more.<br /><br />*scientific terminology
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 633 times
This ball was light and not very spongy, more firm than the other foam ball
This ball was light and not very spongy, more firm than the other foam ball
somewhat spongy pen.jpg (32.37 KiB) Viewed 633 times
10-15 feet or so
10-15 feet or so
range.jpg (31.76 KiB) Viewed 633 times
I stuffed all sorts of stuff in my box!
I stuffed all sorts of stuff in my box!
filling.jpg (26.4 KiB) Viewed 633 times
Three balls in the hand, soon in the box!<br />The dimpled ball is the squishier of the two.
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 633 times
Near enough!
Near enough!
80 psi.jpg (23.44 KiB) Viewed 633 times
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