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R10 Se - Help Needed

Discussion in 'Anything Airgun Related' started by BigSteve#72, Aug 1, 2020 at 8:07 PM.

  1. BigSteve#72

    BigSteve#72 Posting Addict

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    This one goes out to the R10 experts on the forum.

    I have a nice R10 SE in .22 flavour that's developed an issue. It doesn't matter how much you fill the cylinder on the rifle up to the fill gauge on the rifle won't register past 150bar!

    I initially tried a new fill gauge for the rifle and that was exactly the same. I know that if you tighten the fill gauge too much it won't register and that you're supposed to back it off until the gauge starts to register. I've tried this and yes it will still only register 150bar. The gauge does drop from 150bar down as you use the rifle.
    I've put it over the chrono and it's still averaging 11.4ft/lbs with very little variation in both power and velocity. It's a stupidly accurate rifle and if I was keeping it the issue wouldn't bother me as I know with a 200bar fill I wouldn't run out of shots on a good day's hunting or target shooting. But I want to sell it and with this issue it would put potential buyers off.

    Now here's the strange thing, an engineering friend of mine who also tunes air rifles put together a jig. We've taken off my rifle's cylinder and fill gauge, put it on the jig and it reads how ever many bar we fill the cylinder to with the rifle fill gauge matching (within 10-20bar) the diver's bottle gauge. This seems to suggest there's nothing wrong with either the cylinder or fill gauge on my rifle!!!!

    I've even phoned BSA's technical department and their only suggestion is to try another gauge (as they are only for rough estimate) and aren't aware of any common issues like this.

    My friend who repairs and tunes air rifles has had another five R10's in over the last six weeks with the same issue!

    Sorry for the long winded post but do any of the R10 experts on here have any idea what could be the issue and how to resolve it?

    Thanks in advance
    Steve
     
  2. Nords

    Nords Busy Member

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    Wow, never heard of that issue. Strange when a new gauge does the same. If five others have done the same, perhaps it is a gauge and you need to try a third one?
     
    BigSteve#72 likes this.
  3. Thewelshwonder

    Thewelshwonder Busy Member

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    Is Rob scratching his head?
     
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  4. mikeyhall1

    mikeyhall1 Amazing Poster

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    Sure your cylinder doesn’t just have 150 in it Steve mate.

    Sorry if it’s a daft question.
     
    BigSteve#72 likes this.
  5. BigSteve#72

    BigSteve#72 Posting Addict

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    Exactly especially when you put the gauge and my R10's bottle on an external jig, connect a charging bottle and the gouge works as it should?
     
  6. BigSteve#72

    BigSteve#72 Posting Addict

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    Yes he is my friend and there's been a few choice words:facepalm:. He has 6 R10's in at the moment all with the same problem.
     
    Thewelshwonder likes this.
  7. Thewelshwonder

    Thewelshwonder Busy Member

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    Next time you see him ask him about my Bowkett tuned one, that had him pulling what little hair he’s got left out:D:D:D
     
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  8. BigSteve#72

    BigSteve#72 Posting Addict

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    Hi my friend, not a daft question. I never let my charging bottle drop below 200 bar and it's only 6 months old. My friend has tried his charging bottles too. It's baffling the both of us. It's shooting sweet and the reg seems to be working sweet too with less than 10fps spread between shots. What else is inside the block that the reg, fill gauge and cylinder fits into?
    20200801_155402.jpg
     
  9. BigSteve#72

    BigSteve#72 Posting Addict

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    What was the matter with yours my friend?
     
  10. Thewelshwonder

    Thewelshwonder Busy Member

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    Had dropped pressure was firing high 9’s low 10’s when Rob looked at the reg he just shrugged his shoulders and marvelled at the complex engineering John Bowkett puts into his own regulator, his only advice was to take it back to have it sorted out, John did a 2nd updated blueprint free of charge, apparently they need to be shot, mine had not been fired for about 8 months due to ill health.
     
    BigSteve#72 likes this.
  11. Nords

    Nords Busy Member

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  12. BigSteve#72

    BigSteve#72 Posting Addict

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    R10's are notorious for having Censored regs in from the factory but mine is shooting lovely with low vaiation in ft/lbs and fps which indicates the reg is fine. Rob is seriously stumped that's why i asked on here lol
     
  13. Aardwolf

    Aardwolf BSA R10SE SC

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    Probably a very stupid question (I'm in no way an expert) but is your buddy bottle screwed in tightly? If it is my quess would be a fault on the buddy bottles valve.
     
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  14. BigSteve#72

    BigSteve#72 Posting Addict

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    We've tested the buddy bottle on a jig my mate has made and it matches the pressure we put in via the charging bottle. It's certainly baffling us:facepalm:
     
  15. Mortimer

    Mortimer Big Poster

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    I know XTX in Worcester has ceased trading, but he was selling alternative gauges to fit BSA rifles. I just can't remember the brand. Perhaps if you could locate one and try it.
     
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  16. BigSteve#72

    BigSteve#72 Posting Addict

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    That sounds like an idea my friend. You hear a lot of condemnation on here regarding R10's but it's mainly due to regulator issues.
     
  17. Nords

    Nords Busy Member

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    BigSteve#72 likes this.
  18. BigSteve#72

    BigSteve#72 Posting Addict

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  19. Aardwolf

    Aardwolf BSA R10SE SC

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    If you've already tried two gauges and both show the same issue at exactly the same pressure, but when on the jig the error goes, then it is extremely unlikely to be the gauge.
     
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  20. BigSteve#72

    BigSteve#72 Posting Addict

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    Exactly! BSA's only advice was to try another gauge. From what I understand I don't think the reg is causing and issue and the buddy bottle checks out OK. This is why we are stumped as to the cause of the fault :facepalm:
     

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