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Question about Gunpower Stealth

Discussion in 'Anything Airgun Related' started by career707lover, May 7, 2014.

  1. career707lover

    career707lover Busy Member

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    Hi guys, just wondered if anyone has much experience of these rifles. I know some love them and some hate them but its not so much a question of how the rifle performs or looks; I was wondering how easy it is to convert it to .25? I know you can buy them in .25 but they seems to be very expensive (over £450). They seem to go 2nd hand for around £250. Does anyone know whats involved in converting it to .25? I know I would need a new barrel but having never owned or even fired one before Im not sure what else would need replaced e.g. loading ports/bolts etc? Any advice would be great, thanks :)
     
  2. mark112

    mark112 Engaging Member

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    I know of someone who did the .25 conversion. I think it was fairly easy. Turned an inconsistant gun into an even more inconsistant one (+/- 4 ft.lbs) with the trajectory of a brick even at the illegal energy level it then averaged. Pellet fussy it certainly was but some hit a 6" square target.... no grouping as such though. Project now abandoned and gun dismembered and sold. Please buy something else!
     
  3. career707lover

    career707lover Busy Member

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    Appreciate the honest reply mate :) as I said Ive never actually shot one before but have taken the notion to buy one a few times and never done it. I had read up on them though and knew they were a bit of a marmite gun. I did think that the later ones were more consistent though as they used a different barrel something rings a bell with the 2000 model having a barrel change (walther?) but not sure about that.

    I have owned an Alros Trailsman in the past which I thought was quite good and most people seemed to rate the Stealth higher than that but then again it seems that a lot of tinkering is needed to get the Stealth shooting well as it seems they rarely do straight out of the box.

    On a slightly different note, do you know if the BSA Spitfire in .25 was a "true" .25 barrel or one of the ones that were marketed as .25 but were actually slightly smaller? I've been reliably informed from some guys on here that BSA now make proper .25 barrels but not sure about the spitfire?
     
  4. vitalich

    vitalich Keyboard Hero

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    To convert stealth to .25 you need just .25 barrel and small sdjustment to the valve to kerp it under 12
    Easy
    Accurate
    Bigger shot count
     
  5. Clubshot

    Clubshot Clubshot

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    Location:
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    BSA Barrels are .24 -

    Making Standard .25 Rounds Hard to load and Fire -

    I have a .25 Spitfire - For Cage Control

    BOB/R
     
  6. Alex.mc

    Alex.mc Busy Member

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    One Allen bolt, four grub screws and the barrel is out! If your replacement barrel has it's own bushings then same process and the new barrel is in! Less than 10 mins, aside from adjusting the power.

    They are definitely Marmite guns, but for me the simplicity is elegant... even if the gun isn't!

    They are very well suited to high power as FAC guns, some of the long barrelled 100ft/lb American versions are amazing. there's a video around of a guy there hitting drink cans at 600 yards!

    Look up Leupy's custom shop, he's up your way and does a lot of parts and tuning for them.
     
  7. talent

    talent Posting Addict

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    here's another question on the gunpower . my brother recently bought one and when he took the bottle off to fill it he noticed that what I presume is the valve was loose . would this affect its performance .... should it be tight ?
     
  8. career707lover

    career707lover Busy Member

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    Thanks for the replies and info guys. In reply to talent, I have seen this happen with rifles with buddy bottles and usually a bit of loctite is enough to hold it in place.
     
  9. talent

    talent Posting Addict

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    cheers , before locktite should it be fully wound in ?
     
  10. Alex.mc

    Alex.mc Busy Member

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    If you are referring to the "Top hat" being loose on the stem...... then yes it should be tight.
    It has two small grubscrews, which are an odd size, 050 I think? and without loctite they are prone to loosening.

    The height are which the top hat is set affects the power in a small way. It's a fine tune for the power level I guess? Ideally you will have access to a Chrono, and be able to test the power output to ensure you are below 12 ft/lbs! Assuming it's where youy want it, measure the height of the top hat off the tank, make a note, remove it, tiny smear of loctite, screw back on to the same level, even tinyer smear of loctite on each grubscrew and nip them up...... retest with Chrono..... job done!
     
  11. talent

    talent Posting Addict

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    yep , I have a chrono . cheers for that .
     

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