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Thread: Hatsan mod80 Pivot Bolt

  1. #1
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    Default Hatsan mod80 Pivot Bolt

    Hi Gents, I'm all new to the air rifle business. Iím contemplating going the PCP route via either the S400 or 410. But before I make the plunge I first want to plink around to make sure itís not just a weekend bug. I bought a 2nd hand Hatsan (Hatstand ) mod 85. The problem is the grouping, (itís all over the place). It was determined that the pivot bolt is loose, creating breech play and resulting in the SPRAY. I tried a suggested method of using an Impact driver to fasten the bolt. The problem is that the notch on the bolt where the locking screw seats is worn resulting in lateral pivot play within 5 shots. Is there another method of fastening the pivot bolt (LOCTITE etc) or can I buy a new bolt somewhere? Your advice is hugely appreciated. Kind Regards NIK
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  2. #2
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    Gents I'm back and smiles all round. I visited a friend today and we decided to fix the Hatstand's pivot bolt. It went like this. First we shaved a bit off the top of the bolt, as it was already damaged by the previous owner. We decided to fit a spring washer (Hey why not ). Gave it a TAP, TAP, TAP ala Greyskull (NZ). Used a pencil grinder to enlarge one of the "locking arcs", fitted a new locking screw and finished off with some Loctite. AND HERE......DRUm ROLL...Is the result.

    5 Shot Grouping from 15 meters, from a sitting position. I couldn't believe my eyes. Prior to DA fix I was lucky to hit these targets.

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  3. #3
    Sharp Shooter

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    Can you post some groupings at longer distances. It would be interesting to see. What pellets are you using?
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  4. #4
    Protea FT Team '18/'19
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    Nice shooting dude. Glad you could fix the problem.
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  5. #5
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    Hi Swordfish, I was hoping to do that this afternoon, but the neighbours complained. Dogs apparently didn't like the Hatsan SLAM. I must admit, these things are incredibly loud. I have to use ear protection otherwise the riiiiiiinngg sets in. (Anyone know if a Silencer would help? seeing that much of the sound is generated by the piston?) Here is the interesting part, prior to the grouping posted, I fired a 5 shot grouping using Gamo Pro Magnums. You can't really call it a grouping, but it got me all excited...I mean I'm serious when I say I couldn't hit these targets at 15 meters with the lateral breech play. It was getting dark and I had a few Marksman Roundhead pellets in my shirt pocket from some earlier plinking with a friends HW50. I thought what the heck...lets try them. Took the first shot....and i thought i missed the target all together.....here we go again I thought....Got up and inspected the target..O my HAT...SAN!!! I hit the Bull!!! Went back.. took aIM....and...So waar as WRAGTAG I hit it again!! Did it 3 more times and by then it was too dark to see...Anyhow me thinks I'm hooked on this Air Rifle business!!! Today i went pellet shopping...read some good things about Baracuda Heavies but couldn't find any. I ended up buying some cheapies Dynamit Nobles and Arlaz Bulls. (Anyone have an idea what they weigh in at?) I've got Gamo Pro Hunters and TS10 at home that I would like to try as well. I really cannot complain about the grouping I achieved with the Marksman....these things are ancient technology..I mean my dad used them 50 years ago. Anyhow, hopefully I can do some more groupings tomorrow...and see if anything beats the Marksman. See result of the Pro Magnums..Clearly not the pellet for my rifle. Almost looks like they go in sideways
    5 Shot Grouping @ 15 Meters using Gamo Pro Magnum. Shot prior to the grouping posted above using Marksman.
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  6. #6
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    Apologies, wrong Pic posted... this was a 4 shot grouping late afternoon today with Gamo Pro Magnums @ 18 meters before the neighbours put an end to the proceedings. But you get the idea...Not the ammo for my rifle. The 5 shot grouping I intended to post is very similar.
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  7. #7
    Sharp Shooter

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    Sorry mate, a silencer wont work on your Hatsan. The twaaaaaaaaaaaanggggg is to loud...

    Most important- that you are happy with your rifle!

    I bet you will be blown away with the groupings on your first pcp
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  8. #8
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    Hi Ian, thanks I thought so. Like I said I'm hooked!!! Air Arms S410 is on the cards. This is probably a question asked a million times but how many shots do you get out of a standard sized Scuba Tank and how much does it cost to fill?
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  9. #9
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    Sorry forgot to specifiy...amount of shots out of standard scuba for .177 S410 at default pressure.
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  10. #10
    Rest in Peace Mike 05/12/2014

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    If I can be of any assistance I would suggest you deposit the air rifle in a rubbish bin and take up motorcycling.

    The people on this forum are crazy and soon you will be too!

    Run while you can!
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  11. #11
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    Sies vir jou Mike, skiet maats maak nie ander skiet maats so bang nie.

    Ha! Ha! said the Clown!!!
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  12. #12
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    hehehehe!! My Tipe Mense!!!!!
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  13. #13
    REP: Oom A's Airguns

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    The only silencer that works for a Hatsan are industrial earmuffs.
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  14. #14
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    Quote Originally Posted by Adrianv View Post
    The only silencer that works for a Hatsan are industrial earmuffs.
    Its the plastic stock that is the problem. It reverbs the shock of the piston.

    Try filling the butt of the stock with an expanding foam. Go in from the inside, just behind the safety, drill a small hole and poke in the nozzle of some aerosol expanding foam. It really does work.

    As for abandoning air rifles for Motorcycles,.......it doesn't work! You just exchange one addiction for another. It took me 20 years to shake that addiction and come back to air rifles again.

    I was wondering one day what the hell I was doing on a turbo charged 750 Kwaka. Boyz and toyz theory I suppose, but I am so over it now. Air Rifles are so much more subtle.

    GS
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  15. #15
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    Hi Greyskull

    Didn't realize you're on this forum..I bet there are thousands of Hatsan owners in SA and I'm really glad we have a HatStand specialist in our midst!! I'm going to take your advice on the expanding foam!

    As far as bikes go, It ended my addiction for me 8 years ago when a Golf VR6 merged with my FZR1000
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