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.177 FT TalonSS setup

Home Forums AirForce Talon/Talon SS .177 FT TalonSS setup

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  • #1476
    blackops
    Participant

    I’ve been wrenching on a .177 setup for a couple weeks now and just today it started to show some promise! I started with a 25″ 16mm Target barrel from MAC1 turned the breach and tuned it for 900’ish fps. My idea was to cut the barrel down an inch at a time and shot for fps with the tophat staying exactly the same as well as the power wheel to soo how different barrel lengths effected power on a .177 @ 900fps/20 fpe. Well it turns out setting up the breach over and over is a SERIOUS pain in the ass so it got chopped in bigger chunks 😆

    Mistake #1 turned the breach down a little too small cause after I got it smooth and all the scratches out it was .303! factory is .308-.310 so I am pretty sure I was getting some huge fps variances from this. I started smoothing my final breach on the 14″ barrel .315 and I ended up @ .311 with the breach slide working nice and smooth and shots much more consistant.

    I was initially thinking I “might” keep the long barrel until I put it together with the shroud on it and it was like a frigging fishing pole! I LOVE the short compactness of the SS so I knew an 18″ barrel was where I was heading, even if I gave up some amount of shots to keep the gun short and handy. Then I undercut the breach on the 18″ barrel 😡 did some shooting and cut it down to 14″… so I wasted 11″ of a perfectly good match .177 barrel 😕 live and learn…

    I put the muzzle bushing 1/2″ from the muzzle and the other in it’s factory spot for now. The muzzle one has a groove cut into the barrel that the o-rings fit into then a vented bushing presses on over them and is a friction fit into the frame. I’ll be doing something for the rear bushing but it is kind of complicated in that it needs to center the barrel as well as support the power wheel and keep the barrel from being blown out the front of the gun…still working a good solution for it.

    For the moment stock hammer, spring, trigger parts(minus the “safety”) and breach slide although I have plans to make all new custom pieces for them as well as a new valve and 1,000CC bottle. The tophat keeps coming loose which is really annoying

    Here’s some #’s from the 18″ & 14″ barrels and also from my .177 AirWolf. I was checking to see if maybe the Combro Chrony was f’ing up on me. Damn the Wolf is consistant!

    18″ barrel .303 breach old o-rings
    611 PW6
    584
    934 PW8
    927
    925
    929
    891
    913
    904
    858 PW12
    835
    841
    927 PW5
    951
    892 PW4
    885
    875
    828
    759 PW3
    736
    855
    746
    725 PW2
    677
    651
    757
    549 PW1
    582
    673
    533 PW0
    507
    548
    524
    592

    AirWolf .177 Kodiacs
    887
    883
    889
    882
    882
    882
    884
    882
    879
    883
    887
    890
    888
    889
    884
    888
    887

    18″ .303 breach new o-rings…hope this would help the undersized breach
    692 PW8
    692
    688
    683
    677
    677
    663
    678
    680
    676
    671
    671 PW12
    623
    623
    648
    684 PW6
    693
    681
    673
    683
    681
    685

    14″ .310 breach
    650 PW2
    651
    671
    632
    910 PW6
    898
    903
    893
    896
    895
    887
    873 PW8
    866
    867
    865
    878

    Pics coming later I can’t post or get to them from work…

    Jim.

    #33389
    mikemv
    Participant

    oops

    #33390
    mikemv
    Participant

    Still nice numbers on your 14″. With the larger tank you’ll have plenty of shots I would think.
    Thanks for sharing all that. Lots of work put into it ❗

    Just about have to glue the grubs on the top hat. 🙁

    #33400
    volsr1
    Participant

    Nice consistent numbers….Impressive! I thought about getting a .177 barrel and use in the FT hunter division. I just don’t think the trigger (even tuned by Anthony) is competitive unless there’s some other way of tuning that I haven’t heard about.

    #33470
    blackops
    Participant

    Got in another 49 shots today and crunched some initial numbers. At 17-19 fpe the .177 is NOT looking good efficiency wise 🙁 just as the world has said on all other .177 vs. .22 guns.

    The numbers below were gathered over the last couple weeks/months and are made up of shooting a 12″ and 24″ .22 Talon setup with a stock valve and the tophat shimmed so I could shoot the gun at power levels from 8’ish to 20fpe.

    .177 Setup
    14″ barrel
    stock Talon valve
    Tophat set at .026″
    Power Wheel varied from 5-11

    fpe/psi__fpe__psi used__psi/fpe__psi/shot___% more efficient than .177
    .546——767—-419——–1.8——-8.5———–Baseline 14″ .177
    .239——2115—507——–4.17—–4.8———–44%
    .434——334—-145——–2.3——-5————-42%
    .481——1731—725——–2.38—–6.5———–24%
    .369——1256—464——–2.7——7.6————11% ** Light valve spring????

    This is really interesting so far…not happy at all about the low efficiency though. I’ll have to mess with some other setups and see what I can come up with…

    ❓ HOW does the AIRWOLF get 180 19fpe shots from the same(500cc) size tank? AND from only 190 BAR!!!

    Jim.

    #34323
    blackops
    Participant

    testing fills from 180, 170, 160 bar…here is the string from the 160 bar.

    If I loaded up with Crosman Premier lights I’ll be shooting in the 820 fps range with a string like this…

    Jim.

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