pellet slingshot???

Discussion in 'New project ideas' started by zenoah, Apr 21, 2013.

  1. zenoah

    zenoah New Member

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    Well I'm trying to come up with a design to shoot standard 5.5 mm pellets (bb's should work too).<br><br>I think that using a 6mm inner diameter aluminium tube would be the best barrel, but I havent figured the out the rest...<br>Any thoughts from the pros? going pump action style or maybe try a "momentum drive" system.<br><br>Jb
     
  2. bushcraft kid

    bushcraft kid New Member

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    Just curious, why pellets? Also what do you want an actual slingshot or a slingbow? Pellets are really quite light and because of how rubber works they wouldn't travel that fast. If you want just a regular slingshot (what i would recommend for shooting pellets) get some thera band gold and make a matched set for the weight of your pellets. If you want a slingbow, the only thing i can think of is a home made Airowgun set up, Joerg did a video on something like this, also at the end he explains why pellets just aren't the best sling shot ammo.<br><br><br><a href="http://www.youtube.com/watch?v=tyBmatkX4S0&list=UUVZlxkKqlvVqzRJXhAGq42Q" target="_blank" rel="nofollow">http://www.youtube.com/watch?v=tyBmatkX4S0&list=UUVZlxkKqlvVqzRJXhAGq42Q</a>
     

  3. zenoah

    zenoah New Member

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    @bushcraft kid, thanks for linking that video!<br><br>Well a "real" slingshot for pellets would not make much sense I guess, tumbling and stuff, so more of a slingbow design.<br><br>And why pellets? I have a bunch of them <img src="http://illiweb.com/fa/i/smiles/icon_razz.gif" alt="Razz" longdesc="9"> and if one could make a slinggun (a bow insinuates the use of an arrow to me <img src="http://illiweb.com/fa/i/smiles/icon_razz.gif" alt="Razz" longdesc="9">) than pellets would be a cheap ammo source!<br><br>I'm awaiting a shipment of tbg and I was planning on using the calc from the site to calculate the best bandset.<br><br>Jb
     
  4. zenoah

    zenoah New Member

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    What do you guys think of the following concept?<br><br>Jb<img src="http://i691.photobucket.com/albums/vv274/zenoah/97f1adab-4cba-48d0-89a6-bfbc43cff681_zpsf686be97.jpg" border="0" alt=""><br><br>The plunger/nail will be hooked up to the bands and pulled backwards, when released it will hit the pellet, transferring some of its momentum.<br><br>I think it would be easier to realize this design than a pump action style, because the rather small diameter of the pallets..<br>
     
  5. MedievalSlingshot13

    MedievalSlingshot13 New Member

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    I think you could adapt Joerg's pump action pistol to shoot pellets, would be pretty cool. I like the concept.<br><br><br><br><br><br><br><br><br>when in doubt, drink rootbeer.-H
     
  6. bushcraft kid

    bushcraft kid New Member

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    i hate to say it but this just will not work very well, first off rubber powered weapons gain their power from a long period of acceleration, that is why we are always looking to increase draw length on our slingshots, in this design the "plunger" will only have a short distance to travel, and when it does impact the lead pellet the relatively soft lead will absorb the impact, so there will not be good energy transfer. Then what ever speed/momentum the pellet does have will be lost to friction in the barrel because there is nothing to keep it moving/accelerating. Also you said you wanted to use 5.5 mm pellets which is .22 caliber, a different caliber than BBs which are 4.5mm or .177 caliber just making sure you knew that. my suggestion is either build something like the airowgun, which another member just did, jt-1911 check out his video at:<br><br>youtube,http://www.youtube.com/watch?v=b3ALcxXgvRY&list=UUeIZckFcnSTHjmVk8uB07gg&index=1<br><br>or if you already have a large number of lead pellets and no other use for them, melt them down and make lead slugs to shoot with a conventional slingshot, there is a lot of info on this sort of project on youtube.
     
  7. zenoah

    zenoah New Member

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    Yeah that design is of the drawing board. Although it wasn't full scale just for the idea so the acceleration part would be much longer <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15"><br><br>I might give a pump action a shot! <br><br>Jb
     
  8. pelleteer

    pelleteer Middle Aged Delinquent

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    I see where you're going with the design, but I agree with Bushcraft Kid that you'll need more than momentum to get any sort of decent velocity out of an airgun pellet. ALso, unless you have some kind of rifling, accuracy will be pretty mediocre with the standard elongated pellet. At the very least, you'd need to have a plunger with a seal around it and then some kind of nozzle at breech to force the air through a small hole, just like a regular airgun. The plunger (or "piston") could be rubber powered, though I can't think right now how one would manage that. Keep working on the design. It's an interesting concept. Hopefully some of our members who have minds better suited to engineering can give you some ideas. :cool: