A Troy Hammer Kral PB Story Part 1: Check out my Rig!

Forums PCP Airguns A Troy Hammer Kral PB Story Part 1: Check out my Rig!

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    JeffDodge
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    Siscakidd

     

    My .25 is tuned for power at 55 ft lbs and still has a decent shot count of 48-50 I alternate it with my .25 wildcat for hunting….it hits with authority and is just as accurate,so impressed by this mid level gun

    Is that a Sumo on there?  I'm sure you love it, not even going to ask… my Tanto was all I needed direct mounted to barrel but I like the shroud when it's turned backwards, it's the max length in that config and I want to experiment with the air stripper but think I may need to polish and crown that thing pretty good just to cross it off the list of things that may be effecting accuracy.  Not that I'm disapointed with my groups off the back of my Civic with some wind looking through a so-so scope, this is my first PCP and I've shot and modified and tinkered with fire arms and break barrels for about 12 years here and there but I friggin love this gun and am so excited at it's potential still.  If the gun was shooting as good as it can, like many of my other hobbies, I'd probably be done with it…  

     

    So my question is, have you done any testing with shroud vs. no shroud vs. Donny vs Donny&Shroud for accuracy comparisons??

     

    Also, 50 shots at 50+ FPE is really nice out of a non-regulated 280cc…  I mean, damn that's good.  Theoretically, do you think I could ever achieve that shooting 25.39 pellets in .22 caliber?  why is it that much harder in a smaller caliber??

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    Siscakidd
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    I have not done any testing at all…I am a hunter and some times I punch paper to kill time,I can say that the accuracy of both guns is really good,my .22 has Troys  quiet kit and the hammer hitting the valve is really the only noise you hear till the pellets hit down range.and the .25 with the sumo basically the same thing with a much louder thud down range.troy did the trigger on my .22 and it’s fantastic not as good as the wildcat but reall freakin close…. good luck with yours

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    JeffDodge
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    My .25 is tuned for power at 55 ft lbs and still has a decent shot count of 48-50 I alternate it with my .25 wildcat for hunting….it hits with authority and is just as accurate,so impressed by this mid level gun

     

    p for shot count ,I get 80 ish shots at 28 ft lbs…I use that when I just want to shoot paper or red squirrel or chipmunk 

    wow, that is a great pair right there.  

     

    I just got new springs from Troy in the mail (the stiffer of the two is the same spring in your .25) and I'm shooting 50fpe with an "extreme" spread of 9fps!  I only screwed it in a few turns and it has plenty left to crank up the power.  I've got quite a bit of testing to do and have some 28gr bowtail HP slugs coming in the mail today that I'll be testing out as well.  More to follow in a separate thread.

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    Imold
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    Will be interesting to see how those BTHP’s do in your .25 if the numbers are good I might have to give them a try, where did you get those if I may ask? I have a Mega .25 coming from Troy that he is tuning for me and those might be worth checking out.

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    JeffDodge
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    Don’t want to post prematurely on results and my chrony kept giving me errors but did read some at 920fps for 53fpe!   The expansion is crazy and at 35yds they were touching but were opening up at 50….only shot about 10 before it got dark but hopeful to tune these nice nice

     

    jimNM sent me the link and has had good luck I think

    https://www.ebay.com/itm/22-Cal-AIR-RIFLE-PELLETS-28-grain-hpbt-BUY-3-GET-1-FREE/163233610851?hash=item26017b3c63:g:v40AAOSwpNxayQeg

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    Imold
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    Thanks for the info.

     

     

     

    jim.

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    JimNM
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    I have hunted with the 28g HPBT, not shot much paper.  My hunts have been under 50 yards.  The effect on ground squirrels is quite profound.  They just explode at 32-ish fpe.  I  do know that these shoot about 1 inch high at 50 yards compared to my go-to 28.5g diabolo pellets.

     Get ya some, shoot'em and tell us about how the work for ya.

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    JeffDodge
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    Imold

    Will be interesting to see how those BTHP’s do in your .25 if the numbers are good I might have to give them a try, where did you get those if I may ask? I have a Mega .25 coming from Troy that he is tuning for me and those might be worth checking out.

    So Jim, just wanted to clarify one thing – these are 28gr in .22 cal not .25 just to be clear if you were interested.  

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    Imold
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    10-4 thanks for catching that, my mind got sidetracked, guess I was thinking of the .25 cal,

    I can just try some 28gr Hunter Extreme pellets in the .25 and see what happens, but the BTHP’s in 28gr sounded pretty nice.

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    JeffDodge
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    So I’m getting so “blow by” I would call it (?) a little puff of air by the hammer spring and cheek peice, is this symptomatic of a bad o-ring somewhere or a inefficient hammer spring setting perhaps that’s creating some bounce maybe?  Anyone seen this problem?

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    JeffDodge
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    Wasn’t the best description of the above, if you look at the picture you can see the condensation from the “blow by” air.  Not sure if it was doing this on full power, as well as choking the flow with the power adjuster.   

     

    Also, if someone can suggest a methodology to tuning the hammer spring tension to the ideal setting with power adjuster, I’d be all ears.  

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    JeffDodge
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    Cleaned the barrel and polished it with some 3M sandpaper that Ernest Rowe suggests.  The 25.4's have become very innacurate after 50 yards for some reason and the cleaning didn't seem to help, can't figure it out.  So, I detuned the rifle to shoot 18.1's at 950-970fps for about 48 shots and it's very accurate, got a few groups at or close to .61" at 70yds, psyched!  

     

    going to polish the barrel again but this is what it looks like now

     

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    JeffDodge
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    This was a shot string I took today, I'm going to go try a different hammer spring to see if I can get more than 33 usable shots with the 18.1's, I think I'm hitting that valve too hard maybe but I love the performance out to 100yds shooting them at 950fps, very surprised there.

    # FPS FT-LBS Bar psi
    72 875 30.83 125 1813
    71 871 30.55 126.4 1833
    70 884 31.46 127.8 1853
    69 888 31.75 129.2 1873
    68 883 31.39 130.6 1894
    67 896 32.32 131.9 1914
    66 902 32.76 133.3 1934
    65 911 33.42 134.7 1954
    64 910 33.34 136.1 1974
    63 916 33.78 137.5 1994
    62 922 34.23 138.9 2014
    61 910 33.34 140.3 2035
    60 912 33.49 141.7 2055
    59 927 34.6 143.1 2075
    58 928 34.67 144.4 2095
    57 925 34.45 145.8 2115
    56 936 35.27 147.2 2135
    55 936 35.27 148.6 2155
    54 944 35.88 150.0 2176
    53 945 35.96 151.4 2196
    52 947 36.11 152.8 2216
    51 947 36.11 154.2 2236
    50 957 36.88 155.6 2256
    49 947 36.11 156.9 2276
    48 936 35.27 158.3 2296
    47 946 36.03 159.7 2317
    46 949 36.26 161.1 2337
    45 932 34.97 162.5 2357
    44 944 35.88 163.9 2377
    43 943 35.8 165.3 2397
    42 944 35.88 166.7 2417
    41 943 35.8 168.1 2437
    40 952 36.49 169.4 2458
    39 940 35.58 170.8 2478
    38 946 36.03 172.2 2498
    37 947 36.11 173.6 2518
    36 950 36.34 175.0 2538
    35 950 36.34 176.4 2558
    34 938 35.43 177.8 2578
    33 941 35.65 179.2 2599
    32 940 35.58 180.6 2619
    31 922 34.23 181.9 2639
    30 939 35.5 183.3 2659
    29 931 34.9 184.7 2679
    28 930 34.82 186.1 2699
    27 928   187.5 2719
    26 919 34.01 188.9 2740
    25 924 34.38 190.3 2760
    24 921 34.15 191.7 2780
    23 914 33.64 193.1 2800
    22 925 34.45 194.4 2820
    21 918 33.93 195.8 2840
    20 916 33.78 197.2 2860
    19 909 33.27 198.6 2881
    18 915 33.71 200.0 2901
    17 913 33.56 201.4 2921
    16 903 32.83 202.8 2941
    15 906 33.05 204.2 2961
    14 913 33.56 205.6 2981
    13 906 33.05 206.9 3001
    12 893 32.11 208.3 3022
    11 902 32.76 209.7 3042
    10 897 32.4 211.1 3062
    9 892 32.04 212.5 3082
    8 882 31.32 213.9 3102
    7 894 32.18 215.3 3122
    6 895 32.25 216.7 3142
    5 894 32.18 218.1 3163
    4 884 31.46 219.4 3183
    3 875 30.83 220.8 3203
    2 880 31.18 223.6 3243
    1 861 29.85 225 1.4

     

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    DirtyDovi
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    Jeff,  

    Thanks for posting the link to this thread on my 'Puncher Broken' page!
    I really enjoy seeing other people's setups, and I've gotta' say – Your PB is killer!
    Great Stuff,  and,  this only gets me even more anxious and hyped to get mine back in action!

    🙂👍 

    Sam –

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    syotos6
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    Hi guys, any help will be taken on board and truly grateful, i have fitted a huma-Air regulator and i have come accross a small snag, this happens with and without the regulator, I have air coming through this hole and out of my barrel, what have i mist

    thanks for helping

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