Excal Vari-zone loosing calibration

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NightTrain
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Excal Vari-zone loosing calibration

Post by NightTrain »

I set-up my phoenix this weekend as the nice weather will make outdoor shooting much more enjoyable. I dialed in the scope as directed. And it shot excellent spreads.

After about 10 shots, the spreads started moving an inch to the right and up a half inch. :?:

To eliminate the human accuracy variable (as much as possible), I always steadied the bow on a railing while shooting the same distance.

Previously I had a cheaper (tasco .22) scope mounted on my crossbow. It shot perfect every time after calibration. So I know it's not the bow.

Any suggestions???
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Post by Digger »

I would first check all the screws and make sure they are tight, thats what happened to my scope and the screws had backed off.
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BOB VANDRISH
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Excal Vari-zone loosing calibration.

Post by BOB VANDRISH »

Take it one step further,by taking it all apart and using Loctite,either permanent or removeable,and then re-install the base and the rings.
Make sure your scope is vertical and then allow to dry before setting it up again.
All us old timers have been through that with scopes on shotguns and rifles,before the days of the crossbow!!
Nothing worse than missing that key shot dues to a loose scope,and I am speaking from personal experience.
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ninepointer
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Post by ninepointer »

Like digger said, check all the screws first. My buddy had the same problem and it turned out that the screws holding his scope base to the action would loosen every 30 shots or so. Solved it with BLUE Loc-tite.
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ed martin
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string

Post by ed martin »

maybe your string is stretching, i know mine did for the first 100 shots. :wink:
NightTrain
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Re: string

Post by NightTrain »

ed martin wrote:maybe your string is stretching, i know mine did for the first 100 shots. :wink:
HMMMMM, This bow has not been fired more than 60 times.

Could this really be the issue??? :?:

Anyone else have this problem??
A.W
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Post by A.W »

Should always check your string height when you shoot.
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NightTrain
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Post by NightTrain »

A.W wrote:Should always check your string height when you shoot.
String weight???

A little new at crossbows.
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Post by A.W »

As your string stretches it gets closer to the front of your bow. Check your brace height to make sure it's okay.
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