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Putting a little more power in a $15.00 Daisy

Discussion in 'Air Guns' started by cobalt327, Jul 17, 2016.

  1. cobalt327

    cobalt327 Member

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    It's a shame the cost is so high- within spitting distance of a LW tube.

    FWIW I see there's an electroless Ni process that uses a percentage of phosphorus to increase wear resistance (unsure if this is inherent to ALL electroless Ni plate or is a 'special' process). When heat treated it seems that it would be gtg in a BB gun shooting plated ammo. More HERE.
     
    Last edited: Jun 11, 2019 at 9:15 PM
  2. hinz57

    hinz57 Member

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    FWIW, the price included a heat treating process said to make the Rockwell hardness higher. He didn’t think it would make much difference. Sorry, probably left out more....
     
  3. cobalt327

    cobalt327 Member

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    It would be interesting to see just how well it worked, and for how long. I think as long as the muzzle wasn't eroded, accuracy would be better. I'm not sure how wear would take place but it would seem if there was going to be wear that it would be right in the area where the air tube contacted the BB. Once the BB is in motion all there would be is the friction between the BB and ID of the tube and that doesn't seem like it would be all that much. But he's an expert on this and I'm a backyard hack, so.... ¯\_(ツ)_/¯
     
  4. Cvans

    Cvans Member

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    Your also up way too early in the morning. Is this BB gun thing keeping you awake at night? :)
     
  5. cobalt327

    cobalt327 Member

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    Haha ordinarily I would say no, but actually I've been butting heads with a recalcitrant 111-40 that refuses to shoot the MV I know it should. It's the most perplexing gun to cross my path is quite some time and it actually has made me stay up late trying different things to get it shooting right! I can't quit now- I have too much time invested already, so in for a dime, in for a dollar...
     
    Cvans likes this.
  6. NRADAVE

    NRADAVE Member

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    Good hear Hinz investigated the plated bore idea. I contacted several area shops. No one was interested in taking the time. At least for the $$ I was willing to invest.
    Thankfully I believe the “Marksman” BBs have solved the bb to bore fit issue.
    I’m using two of the 1938Bs (both fitted with scopes) to test accuracy and improved trajectory. The gun I modified with a hop-up “nub” in the bore is showing promise. Still playing with the amount of engagement the nub has with the BB. Will publish results when and if I’m satisfied they’re correct.
     
  7. cobalt327

    cobalt327 Member

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    For anyone who didn't see it, there are some very interesting photos of two BB pistols that use hop up. One is the Sig Sauer P226 X-Five Open without adjustable hop up, the other is a Umarex Beretta M9A3 with adjustable hop up. They show the shape of the bucking and how the adjustment is made, etc. Good stuff and thanks to rws_53 for posting it.

    I'm wondering how critical it is for where the bucking is placed along the length of the barrel. For the pistols shown, it's close to the breech. But with a BB 'rifle', is it better to place the bucking near the breech or would putting it closer to the muzzle be better? It would seem that there'd need to be more bucking engagement the further the BB had to travel inside the barrel to keep the same amount of backspin due to friction.
     
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