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 Post subject: Xisco 46U Underlever
PostPosted: Fri May 22, 2020 8:28 pm 
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Joined: Mon May 11, 2020 1:53 pm
Posts: 3
Hello ... I just received a Xisco 46U from Wes at Airgun Archery Fun .... Beautiful gun but I have one problem that I never had since I’ve been buying firearms and now airguns only is that my scope needs to be shimmed which I have never done ... At 40 feet,it is 5 inches below with my scope set right to the top and can’t go higher ... I must bring the back of scope up and want to know if I install shims or buy an adjustable scope rail . ? Have any of you bought this airgun ?
Any help will be appreciated !!

Danny


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 Post subject: Re: Xisco 46U Underlever
PostPosted: Fri May 22, 2020 9:42 pm 
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Joined: Mon Aug 15, 2016 11:00 pm
Posts: 496
Calling card works for me, if you want it thicker, use expired credit card


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 Post subject: Re: Xisco 46U Underlever
PostPosted: Fri May 22, 2020 9:43 pm 
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Joined: Sat Mar 16, 2013 5:15 am
Posts: 3778
Location: Edmonton
Five inches at 40 feet is quite dramatic.
This is an underlever springer, right? So barrel droop is not the issue. The first thing I would suggest you do is shoot it with the irons and see how it performs. Are you sure it is shooting at its expected power level? If so, and it's shooting fairly well on irons, then it's likely a ring/scope issue. Are you using high mounts? Do you have a history with the scope?


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 Post subject: Re: Xisco 46U Underlever
PostPosted: Sat May 23, 2020 5:26 am 
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Joined: Mon Mar 27, 2017 7:06 pm
Posts: 942
Location: Meaford, Ont.
Scope should be as close to the barrel as possible when mounted and if it is close:

First off I would switch the rings around. Make the back ring your front ring. Check bottom of rings. Some cheap rings comes with felt in the bottom. Perhaps one in front is missing. if so remove back one also. if there are none and you decide to shim, I use shims out of Pop can. Make sure shims are perfectly centred in bottom of ring or it throws off the right to left.

CHEERS!


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 Post subject: Re: Xisco 46U Underlever
PostPosted: Sat May 23, 2020 7:01 am 
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Joined: Mon May 26, 2014 1:08 am
Posts: 524
Location: Thunder Bay
If you use a shim inside the ring, be careful when tightening down the cap. Over tightening may crush the scope tube, destroying your scope. Please don't ask me how I know this. Two of my springers have barrel droop. I use stiff paper (matchbook) rather than sheet aluminum or brass. The paper shims have been on my two "droopy" springers for years now.

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 Post subject: Re: Xisco 46U Underlever
PostPosted: Sat May 23, 2020 8:43 am 
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Joined: Mon Aug 05, 2013 4:35 pm
Posts: 829
Location: somewhere in NB
hi

had a Browning leverage(same as 46U) and definitely barrel droop on that rifle, shimming the back ring works as i had the same problem

Mr Eustler describes exactly that;


https://www.youtube.com/watch?v=GxPYIrWr8SY&t=333s

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 Post subject: Re: Xisco 46U Underlever
PostPosted: Sat May 23, 2020 8:53 am 
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Joined: Fri Jan 22, 2010 1:17 pm
Posts: 2327
Location: Kingston, ON
robipaul wrote:
hi

had a Browning leverage(same as 46U) and definitely barrel droop on that rifle, shimming the back ring works as i had the same problem

Mr Eustler describes exactly that;


https://www.youtube.com/watch?v=GxPYIrWr8SY&t=333s

I concur. My old Leverage came with rings marked front and back and the rear rings did need shimming. In the video, start at 5:00 minute mark for the droop and scope discussion. So shim away and you should be good to go. I'd use some thick sheet plastic like off of a shell wrap package from Costco, just get a nice flat section.

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 Post subject: Re: Xisco 46U Underlever
PostPosted: Sat May 23, 2020 12:39 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6886
Location: P.G. B.C.
The best way to combat excessively shooting low, is with a scope base that has built-in cant.
The base on the top rifle has 17.1 minutes of angle built-in. It is designed to combat barrel droop
problems. Shimming in side the rings can leade to crushed scope tubes to the offset rings in the rings.
The proper method is with an angled base as shown in this picture.
I bought the rings/base from D&L Air Guns in Richmond. Most air gun supply shops have this sort of base.


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HW Rifles and Scopes 65 percent.jpg
HW Rifles and Scopes 65 percent.jpg [ 232.8 KiB | Viewed 307 times ]

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