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All About Guns What's your weapon of choice, and why? Discuss the beloved speargun here!

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Old 08-25-2019, 05:22 PM   #31
SEATUX
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Re: Why do we open the end of an enclosed track?

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Originally Posted by popgun pete View Post
Seems that we are getting away here from the topic of the thread and that is why the track is opened up at the muzzle end. If the track slot is widened at a short taper rather than just ending abruptly it serves as a guide for the tabs as the shaft is inserted during reloading.

As for suction try pulling the shaft out by hand with your gun submerged or just pumping the shaft back and forth in the gun and you will find out if suction is a factor.
Yea..or another test would be to pull back a "slurp gun" you know, the "gun" used to collect tropical fish..yup, pull it back at 10fsw and then again at 110fsw and notice the difference..everyone knowledgeable about how tanks are hydro'd knows how much water compresses ..
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Old 08-25-2019, 06:18 PM   #32
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Re: Why do we open the end of an enclosed track?

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Originally Posted by SEATUX View Post
Yea..or another test would be to pull back a "slurp gun" you know, the "gun" used to collect tropical fish..yup, pull it back at 10fsw and then again at 110fsw and notice the difference..everyone knowledgeable about how tanks are hydro'd knows how much water compresses ..
Does it feel different at 10 ft versus 110 ft ??? If so why?
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Old 08-25-2019, 06:36 PM   #33
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Re: Why do we open the end of an enclosed track?

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Originally Posted by SEATUX View Post
Yea..or another test would be to pull back a "slurp gun" you know, the "gun" used to collect tropical fish..yup, pull it back at 10fsw and then again at 110fsw and notice the difference..everyone knowledgeable about how tanks are hydro'd knows how much water compresses ..
Much larger cross-section in a slurp gun, so not really a comparison. Force equals pressure times cross-sectional area.
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