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Thread: Barrel shortening?

  1. #1
    Sharp Shooter

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    Goood evening gents & ladies!!

    I said before I want to cut my Diana 34's barrel shorter. It's now at a smidge over 19,6" / 500mm I'm thinking to take it down to 400mm. I think this would be a good length, seeing as though the pro compact version has a 15,75" (400mm) barrel anyway. I know I'ma loose the choke, but am willing to take a chance. I have a full machine shop at my disposal so I'll be able to do the crowning myself.

    Hold thumbs!!
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  2. #2
    Sharp Shooter

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    Hi
    fro. Experience don’t do it.

    choke is very important.
    crowning is easy
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  3. #3
    Sharp Shooter

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    Go for it did it to 4 rifles and did not lose accuracy or velocity
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  4. #4
    Springer FT World Champion '09
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    Quote Originally Posted by kaidu View Post
    Hi
    fro. Experience don’t do it.

    choke is very important.
    crowning is easy

    Have to disagree...

    Put a 410 LW barrel on my P12. Accuracy was terrible.

    Decided to shorten the barrel from the front end. Hacksaw down to 315 and cleanup/choke on the lathe by Sinjin to 310.

    One holer now, sans choke!

    Kevin from Airvolution does not believe that chokes are necessary either. I was hung up on barrel choke, but now I'm not. A good crown, however, is essential.
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  5. #5
    Sharp Shooter
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    My HW50 has a 10" barrel and it shoots great
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  6. #6
    Sharp Shooter

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    Well I just got home and ran to the back room, assembled the 34 and took 4 quick shots out the back door, standing. At about 8-9meters all 4 holes touching. Very happy with the preliminary results. My crowning procedure was of my own design, but worked very well. A nice small, clean, even crown. I did the cotton bud test to see if there where any burrs, and none to be found. Even the shot cycle feels much better now that there is less weight at the front. Cocks well, feels good, but still loud. All in all, quite a bit of work done so far, shortend main spring, PTFE spring guide, aluminium bits and bobs, including a lighter mussel break/cocking aid, safety removed and trigger fiddled with. Now I wanna push out to 25m and see what happens. Hold thumbs

    Here's a before and after the chop.

    Before





    After





    Crown, not the best pic though, but you get the idea. Small, neat and even.
    Last edited by madness; 01-06-18 at 16:19.
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  7. #7
    Sharp Shooter

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    UPDATE!!!

    Went out to the range this morning and sighted in at 25m. Guess what...... You really don't need a choke, they where right all along. 1/2" groups all day with various pellets. And if I really try, jsb 10.34 can achieve 1/4" groups. Hand down, a fantastic rifle the meisteschutz is now. A very happy chappy I is now.
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