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Piledriver Carbine .457

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    ChuckHunter
    Participant
    Member
    United States
    Accuracy: +10

    Getting ready for another firearms deer season!

    November 15 here in Michigan!

    Traded in my Texan last year for a Hatsan Piledriver and after hunting with it and shooting a doe at 72 yards… I decided I wanted to make it shorter this year for easy carry and better manuver ability! Think it's gonna be sweet!!!

    Factory the barrel was 34 inches…I had 10 inches removed!

    Will be testing tomorrow afternoon…have a bunch of different slugs to try.

    James from Michigan 

     

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    gendoc
    Participant
    Member
    United States
    Accuracy: +9

    very nice !!! i bet its going to be awesome !!

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    davidsng
    Participant
    Member
    United States
    Accuracy: +46

    Looks much better with the short barrel.  I'd rather loose power than carry that lone barrel around too.  

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    SqrlHntr
    Participant
    Member
    United States
    Accuracy: +4

    Be sure to keep us updated. Really curious how the accuracy will be affected more so than power. Are you changing any springs or whatnot to use less air? I would think ( usually gets me in trouble) that the factory tune is set up for the added barrel volume and reducing that could mean wasted air because the slug is exiting the barrel much earlier than before.

    FWIW mine loves the NSA 350~ BT-HP for accuracy and the knurled bthp’s are my top choice hunting round. 

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    davidsng
    Participant
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    United States
    Accuracy: +46

    Yes SqrlHntr is correct.  WIth the short barrel there will be a huge blast of air behind the slug, which is going to destabilize it and waste air.  Tune the hammer spring down then work you way back up.

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    SqrlHntr
    Participant
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    United States
    Accuracy: +4

    Just thought of another thing, might be too much to matter or im just dead wrong so ill pound sand if it is or i am.. but the 34” barrel has a 3rd harmonic at about 22.6” so another inch and a half or so off would put the muzzle real close to a node. When you said 10” it made me look where I tuned a limbsaver resonator, and its right on/at about that 3rd harmonic spot about 12” from the muzzle…Just a thought if its squirrely even after some hs adjustments. Here I go thinkin’ about airguns again and on a Sunday morning when I should be in church praying for a 60/60 FT card. 

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    davidsng
    Participant
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    United States
    Accuracy: +46

    Don't read into that Node stuff.  Different guns, different barrel thickness, different tension on the barrel, different pressures, different valve timing; there is no way of telling.  Besides its unregulated.  Pressures and so called "nodes" will be changing at every shot. 

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    SqrlHntr
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    United States
    Accuracy: +4

    davidsng

    Don't read into that Node stuff.  Different guns, different barrel thickness, different tension on the barrel, different pressures, different valve timing; there is no way of telling.  Besides its unregulated.  Pressures and so called "nodes" will be changing at every shot. 

    Hear ya loud n clear. Pretend it never got posted. No need for that rabbit hole here, apologies all. 

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    Airgun-hobbyist
    Participant
    Member
    United States
    Accuracy: +20

    That's a lot of barrel still, with the right slug and tune.  Let us know how it works out as far as accuracy, fps numbers and final slug weight goes.

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    davidsng
    Participant
    Member
    United States
    Accuracy: +46

    Make sure the crown is good. 

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    6600
    Participant
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    United States
    Accuracy: +0

    Looks so much better with the shorter barrel, and you still have plenty length in that barrel :)

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    ChuckHunter
    Participant
    Member
    United States
    Accuracy: +10

    Oh yeah the crown is good… 11° tapper!

    Had to use a 4 jaw chuck to center it up because the bore is off center… 

    30+ winds today so I'm hoping for tomorrow for testing…I'll definitely be back with an update!

    James from Michigan

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    davidsng
    Participant
    Member
    United States
    Accuracy: +46

    Yea, it's good!  

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    Hal4son
    Participant
    Member
    United States
    Accuracy: +2

    Cutting 10" seems like a bold move.  Would you mind putting up projectile/chrono details for before & after the mod?

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    ChuckHunter
    Participant
    Member
    United States
    Accuracy: +10

    Well only had a short session today but the 281 knurled Neilsens were the best… only filling to 250 bar today just to get a base line on accuracy! Where I hunt I'm not going to get a shot much past 75 yards so even at 425fpe I'm getting the job done…will stretch her out a little more this weekend!

    3 shot average of 826 and this is the last 5 at 50 yards!

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    Cheplicki
    Participant
    Member
    United States
    Accuracy: +3

    nice work buddy … cant wait to see your deer this year

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    ChuckHunter
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    United States
    Accuracy: +10

    Cheplicki

    nice work buddy … cant wait to see your deer this year

    Thanks man!!!

    Don't know if this is legal on the forum but took this one last weekend with my Hoyt Carbon! 😜

    159 dressed out!

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    Cheplicki
    Participant
    Member
    United States
    Accuracy: +3

    nice…. i have not see shit with how hot its been …

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    davidsng
    Participant
    Member
    United States
    Accuracy: +46

    Great work!  Looks like you got a keeper! Still a lot of power there!  

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    ChuckHunter
    Participant
    Member
    United States
    Accuracy: +10

    Got ahold of some 280 grain Pure Awesome from Mr Hollow Point the other day!!! Bob casts some fantastic ammo!!!

    Took her out for a couple shots to be ready for Monday!!! 4 at 50 and pulled the first one!!!

    She is ready!!! 

     

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