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Thread: Sweet spot on S400 Classic

  1. #1
    Sharp Shooter
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    Default Sweet spot on S400 Classic

    To all you S400 classic owners . What do you find to be the sweet spot on your gun? How many sweet shots do you get ?

  2. #2
    Inactive Member

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    when i had an s400 classic i think it was from about 170 bar to about 115

  3. #3
    Sharp Shooter

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    You only find this through lots of shooting over a Chrony. It is when you get the most consistant shots from a certain power level.

  4. #4
    Sharp Shooter
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    lewis , that is not the sort of answer i was looking for .Now you have forced me to buy a chrono .As soon as the chrono's are in stock I plan on getting one .For now I was hoping to get a bit of feedback from the guys while I am in limbo waiting for it .

    Moose , how many shots do you get between those 2 ranges .

  5. #5
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    shop around.........and also decide which chrograph to get ie. accurate (pricy) or not so accurate (not as pricy). i found with my chrony (green one/base model), it's light sensitive, i now try do the chrony tests under the same conditions.......ie in doors with controlled light source.

    got my from dnr sports over the net, i think it was USD 50 for the chrony, shipping was 40 or so......but i got it within the week. no duties/vat was payable (lucky i guess).

  6. #6
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    i am also interested in buying a chrono any body know who sells them?.alan i probably got around 70 shots
    <span class='smallblacktext'>[ Edited Sun Jun 12 2005, 10:04PM ]</span>

  7. #7
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    Yeah - gonna need a chrony to work out what fill to use.
    Some like 190 bar, some as low as 150.
    Mine seems to settle around 175 bar, then again I only have the Carbine.

    ...

  8. #8
    Sharp Shooter

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    My 410 classic shoot 8 clicks (1moa) low at 35m when I fill it above 185. When I get to about 175 it returns to normal. At 130 the rifle starts to shoot high due to the increase in velocity. So my sweet spot is from 170 to about 135.

  9. #9
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    My rifle's guage is a bit out, so I work to the guage on the scuba tank and listen to the click of the valve opening.
    Last time I checked I get 41 shots with 7fps shift from 175 - 110bar. Below that and it goes funny.

    ...

  10. #10
    Sharp Shooter
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    Thanks Avion , Lewis and Moose

  11. #11
    psychoSven's Avatar psychoSven
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    found that with my shorter tank i would have it between +150 to bout 110, problem was i wasnt getting enoungh shots to satisfy me so i started from 190 and compensated for the first few shots, but i still gotta figure with my new tank.

  12. #12
    Sharp Shooter
    The Professor

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    My S410 Carbine (300mm cylinder) gives me 50 good shots (ES about 20fps) from a fill pressure of 200Bar down to around 130Bar.

    My NJ-S400FT (520mm cylinder and modified valve) gives 119 good shots (ES<20fps) from a 180 bar fill, normally I fill to 170 and take 80-90 shots. With the modified valve it will give around 150 shots if filled to 200 Bar with good ES (<25fps).

    A recently acquired S400 Classic is giving 65 good shots from 170Bar and an early S300 fitted with a shorter (carbine length) Anschutz barrel is giving 55 shots from 170Bar.

    All the above for average velocities set around 780fps.

    Hope that helps.

    Dale
    <span class='smallblacktext'>[ Edited Fri Jun 17 2005, 09:30AM ]</span>

  13. #13
    Inactive Member

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    avion why dont you buy a classic cylinder and put it on your carbine? i think it was only something like R700 to buy the bigger cylinder and a muzzle break.

  14. #14
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    iirc u also need the collar piece from the S4X0E.

  15. #15
    Sharp Shooter
    The Professor

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    Perhaps he is looking to keep it with a silencer.

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