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S510 Carbine Ultimate Sporter Pressures

Discussion in 'Anything Airgun Related' started by dang_23, Apr 17, 2018.

  1. dang_23

    dang_23 Newbie

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    whats the difference between mfp and msp.... mfp says 190bar and msp says 200bar...... confused by this. Sorry I am new to pcp air rifles . Also the gun has to be cocked when filling?
     
  2. Pete236

    Pete236 Big Poster

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    I believe that MSP is maximum safe pressure - ie any higher and the cylinder becomes unsafe.
    MFP is maximum fill pressure - ie the best pressure to fill to.

    With an Air Arms rifle, the rifle has to be cocked to fill a totally empty cylinder. But when topping up at, say, 100bar, you don't need have the rifle cocked.
     
    PumpnGun, dang_23 and Caliber like this.
  3. Caliber

    Caliber Busy Member

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    AA I always fill to 190. And as above no need to cock. Great rifle btw good choice.
     
    dang_23 likes this.
  4. dang_23

    dang_23 Newbie

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    Thank you very much,I knew what the abbreviations where but didn’t understand the difference - the guy in the shop filled it too 200bar (Wiltshire shooting centre) when
    I was shown how to fill in the shop I didn’t recall him saying to cock it but the manual he gave me ( which was for a slightly different S510 as it was a second hand gun and didn’t have one said it should be cocked ) .... is it best to use all pressure and refill or just top up?
     
  5. dang_23

    dang_23 Newbie

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    Cheers, was a toss up between that and a bsa r10.... Spent way more than I’d planned but hey..... I love it.
     
    Grays85, PumpnGun and Caliber like this.
  6. Caliber

    Caliber Busy Member

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    I don’t let any of my pcps run below 100, so just top up basically :thumb:
     
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  7. MartinJGUK

    MartinJGUK Keyboard Hero

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    I find if you’re fill it to 180 and shoot it down to about 100bar it’s very consistent. If I fill mine to 190 it takes a few shots to settle down
     
  8. dang_23

    dang_23 Newbie

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    Thanks for all the quick replies :) . Lots to learn . Not owned a gun for 20 years.... last one was a Webley tracker !
     
    Caliber likes this.
  9. PaulJC

    PaulJC Well-Known Member

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    I can agree with this, i've still not ran a load of shots through the chrono but filling to 190 seems to send the first couple of shots waywards, after that it's nail on so now i fill to 180...
     
    MartinJGUK likes this.
  10. Dr B

    Dr B Grizzly Airgunner

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    PCPs tend to have a sweet spot - for my S410K its 170 - 110 bar. For my S410 Classic its 180-100 bar. In this region the shot to shot variation is around 3fps, with the total variability being around 8fps through the sweet spot. Dont fill them to 190, the first 16 shots or so will fire low until it enters its sweetspot. You'll need to put some research in to establish your own sweetspot as every gun is different.
     
    MartinJGUK likes this.
  11. PumpnGun

    PumpnGun Donator

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    I think you made the right choice :thumb:

    Ray
     
    trumpetier likes this.
  12. Andy D

    Andy D Busy Member

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    I absolutely agree to this. Best thing to do is fill to 190 bar and then chrono a string of shots down to 110 bar. You will see the power rise, flatten out, and then start to drop. From this you can ascertain your sweet spot. Very nice rifle btw. I have a beech s510 carbine.
     
    Dr B likes this.
  13. MartinJGUK

    MartinJGUK Keyboard Hero

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    When Si Pittaway tested the S510 TDR he was told by Air Arms to fill it to 180 bar. Clearly they’ve come to the same conclusion as us
     

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