Q about stock shot string for AF Texan .257

Forums Big Bore Airguns Q about stock shot string for AF Texan .257

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    UCChris
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    I've been searching, so my apologies if I missed this asked before. I'm looking to see what sort of shot string I can get out of a stock .257 Texan with the NSA 85gr HP-BT? Probably around 1000-1050 fps, since that's where they like to be shot, from what I've read.

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    JamesD.
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    Sorry for this lame answer but with new 4500psi tank, 6-10 at most within a 40 fps spread? Original 3K steel tank, lol, 2-4? 

     I’m friends with the guy that tricks Texans out and competes. He runs a huge buddy bottle on his .257 for 7 consistent shots. We’re quite different from each other in he competes, I wouldn’t ever spend time/money traveling to compete. I still love .177 spring guns. He hates them. I’d prefer to shoot tethered where he/most would not.

    Point is any of The Texans, new 4500psi CF bottle or not aren’t meant for a lot of shots. I personally want a 6K step down in-line reg & 8-10’ of hose to set up on a BR or bipod & shoot targets or varmints, consistently, shot after shot. I have a big compressor so it’s logical for me. If I’m gonna put a 3/4”-1” 36” 1:12 or 1:13 chrome lined Bartlein or PAC-NOR, maybe a Bobby Hart, it’s all for nothing if my slugs aren’t all within a 10-20 fps spread at most. The reg should have 10 fps or less but my sizing slugs 0.0003” over is a huge part of consistency/accuracy.

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    UCChris
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    Ah, bummer. So definitely not going to get 5 good hunting shots out of a steel tank Texan. 

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    Loren
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    Chris,

    Here is a string from my .257 Texan shooting 86gr bullets starting at a 3000psi fill and power wheel set near middle of adjustment range.

    1) 1063 fps

    2) 1058

    3) 1050

    4) 1037

    5) 1023 (2600 psi )

    6) 1002 (2400 psi)

    7) 986 (2300 psi)

    It's really a great caliber and a great platform for the caliber.

     

     

     

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    kohersh
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    Would a gun like this be able to repeatedly ring steel at 400 yds?

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    Loren
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    Depends on how big a steel gong you use.  lol  I think if you at a 24" x 24" you could ding it all day long.

    At 400 yards the projectile will drop 23-24 feet.  At 200 yards it is dropping about 45 inches.

    Here is at 200 yards shooting tethered with regulator.  I'm steal working on dialing in bullet selection, velocity….etc.

    Here is a recent at 100 yards, again tethered with regulator. Shooting a 60gr HP that I cast.

    5 rounds (two are in the same hole, second from left)

     

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    kohersh
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    Impressive!. I could probably get a 12 inch circular gong out there. So you shoot these tethered to a big air source right? Assuming a 500cc bottle is only 2 shots?

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    Loren
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    I am shooting tethered to a 60 minute SCBA tank with a regulator inline between tank and rifle.  The shot string listed above is shot from the rifles aluminum 3000 psi tank and NOT tethered which I think gives 5 good shots for hunting.

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    kohersh
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    Ok. Thanks

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