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 Post subject: Fix for droop
PostPosted: Thu Jul 18, 2013 11:38 pm 
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Joined: Wed Dec 02, 2009 4:04 pm
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Put a Diana 24 barrel on my Diana 34 and was sighting in and turned the elevation all the way up and couldn't get it zeroed. Noticed quite a bit of droop. Question is what to do, bend it up, file down the breech block, or the easy out, compensating scope mount?


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 Post subject: Re: Fix for droop
PostPosted: Fri Jul 19, 2013 1:01 am 
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Location: Canada
Would bend that sucker into submission...if it were mine. :)

Al


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 Post subject: Re: Fix for droop
PostPosted: Fri Jul 19, 2013 9:45 am 
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Location: P.G. B.C.
If it's obviously angled down and you can nicely adjust (file or mill) the breech end of the barrel to make it come up straight when locked, that's how I'd handle this 'problem' as it probably won't take much. That said, I used the 17.1 MOA ring base on my HW98.

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 Post subject: Re: Fix for droop
PostPosted: Fri Aug 02, 2013 2:56 am 
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Location: Sidney, BC.
Put a scope on it and use B/Square AA adjustable mounts....KEN.


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 Post subject: Re: Fix for droop
PostPosted: Fri Aug 02, 2013 6:34 am 
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Location: Central West River Nova Scotia
Diana mount with barrel droop compensator. http://www.specialtyshootingsportsoutdo ... 1-5mm.html

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 Post subject: Re: Fix for droop
PostPosted: Fri Aug 02, 2013 8:08 am 
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Location: England.
I am bewildered why anyone should take the no return approach and file up the joint.

For decades barrels have been bent to get rid of the droop, easy takes seconds.

BSquare adjustable, well if you want to rezero that rifle every time you 'place' it down go ahead.


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 Post subject: Re: Fix for droop
PostPosted: Fri Aug 02, 2013 3:01 pm 
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Location: Sidney, BC.
Obviously operator error....never heard of rechecking the tightness of the adjustment & locking screws?...KEN.


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 Post subject: Re: Fix for droop
PostPosted: Tue Aug 06, 2013 9:09 pm 
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Used different scope and a drooper mount. Works ok for now. Going to take Voltar up on his offer to stop in for a visit and straighten that sucker out.

Do my 350 while we're at it.


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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 12:28 am 
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Location: Edmonton
Not what I was hoping to find in this thread. :(


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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 7:45 am 
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Location: Fredericton, NB
Easy fix without having to bend anything and risk mis-alignment

Fabricate a shim for the rear mount of the scope. Cut out a long strip of tin off a pop can, it needs to be long enough to be bent in two and cover the bottom half of the rear mount, add a piece of electrical tape that will have half of it sandwiched between the tin and the other on top to prevent scratching the scope, do not overthighten your scope rings because you may bend the scope tube.

Did it twice and it compensated for the droop both times and kept zero as the spring holding the crosshair would now be in the optimum position

Paul

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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 8:20 am 
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robipaul wrote:
Easy fix without having to bend anything and risk mis-alignment

Fabricate a shim for the rear mount of the scope. Cut out a long strip of tin off a pop can, it needs to be long enough to be bent in two and cover the bottom half of the rear mount, add a piece of electrical tape that will have half of it sandwiched between the tin and the other on top to prevent scratching the scope, do not overthighten your scope rings because you may bend the scope tube.

Did it twice and it compensated for the droop both times and kept zero as the spring holding the crosshair would now be in the optimum position

Paul


Whatever amount of shim is being used, there should be 1/2 of what is in the rear mount, in the front mount. I used .03" ( 6 x .005" pieces of acetate sheet) in the back, so then put .015" in the front, the shims were cut in arrowhead shapes, each a little smaller than the last to make a gradual incline effect. This helps to angle the entire scope, and reduces the amount of stress on the tube, again, over tightening can always damage a scope, especially when it is shimmed...


Acetate sheet has more give to it than aluminum as well, which again, is less strain on the scope. If you are using aluminum I would make the biggest shim slightly wider than the scope mount so you do not pinch an edge of the aluminum directly against the bottom of the scope tube, as it may leave a small imprint line/dent in the tube.

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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 8:22 am 
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Edmonton<500 wrote:
Not what I was hoping to find in this thread. :(


Sounds like a personal problem :lol:

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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 10:08 am 
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Location: Fredericton, NB
Very good point jgoodz.........about the shims i mean :wink:

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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 12:42 pm 
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Location: P.G. B.C.
barrel Viagra? :roll:

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 Post subject: Re: Fix for droop
PostPosted: Wed Aug 07, 2013 2:19 pm 
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Joined: Fri Aug 20, 2010 4:30 pm
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Location: SW, Ont
I assume you put the 24 barrel on the 34 to save weight, I bought what I thought was a used .177 Diana 24 barrel to replace my Carbine short 24 barrel and turn out the barrel I got was from a 34, nice barrel but man is it heavy!


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