Rifle Scopes New Weaver Tactical w/ warne base wont boresite

C Cape

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Jan 2, 2008
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Hey guys, I'm hoping you can help me out with a dilemma I'm having. I just bought a Weaver Tactical 4-20x50, Warne tactical 20 moa base, and Burris XTR rings to replace my Nikon Monarch, EGW 20 moa base, and QRW's. I installed everything this AM and tried to boresite it but I can't move it down anymore so it will boresite. The elevation is all the way bottomed out. I'm having a badger bolt knob installed so I can't go shoot it to see if it will work at 100 yards or not. I just wanted yalls opinion of what you think I should do. Thanks.
 
Re: New Weaver Tactical w/ warne base wont boresite

Uuuuuhhh thats weird. Sounds like you may have a defective scope and may need to contact Weaver. Was it like that when you first put it on or did you bottom it out before you placed it on the base? Make sure your boresighter is correctly set up also. I would also check your turrets for tightness. Top out the adjustment range and dial it down with the boresighter and see what happens.
 
Re: New Weaver Tactical w/ warne base wont boresite

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rafael</div><div class="ubbcode-body">You didn't say what action this is so I must ask....
Are you sure the base is not installed backwards? </div></div>

This would definitely cause an issue. Remember the the higher part of the base sits in the rear of the action.
 
Re: New Weaver Tactical w/ warne base wont boresite

I have this same issue with a setup I have and I wasn't sure what the problem was. I have a Rem 700 with a NightForce 20moa base (yes it's on correctly), burris XT rings with a NF 5-22X50 scope. When I mounted it up and bore sighted it I noticed I was almost bottomed out on my elevation turret. I got to the bench and zeroed for 100 yds and I had to go ahead and bottom it out completly on elevation, but it's dead on at 100 with it all the way bottomed out. I was curious if maybe the zero stop had been set at the factory for some reason before I got it shipped to me, but the turret is actually all the way down. The outer turret housing is touching the upper section of the scope tube.
 
Re: New Weaver Tactical w/ warne base wont boresite

It's a Rem 700 SA. It can only go on one way so I know the base is installed correctly. The elevation turret is bottomed out so I don't think it's a scope problem. It sounds like I'm having the same problem trevor300wsm was. I work at a hunting store and am trying to decide if I should just order a Badger 0 MOA base and be done with it. I would like to shoot 600+ yards so that is why I went with the 20 MOA base.
 
Re: New Weaver Tactical w/ warne base wont boresite

Well goin to a smaller base could solve the probelm but I would try and contact weaver for explaination. Maybe they have some insight on how the optic is setup at the factory. If your only shooting to 600yds then the Weaver should have plenty of adjustment range to reach and there is no point in having 20moa base.
 
Re: New Weaver Tactical w/ warne base wont boresite

600 is all I can shoot locally but there are 1000 yard ranges within 2 hrs of here and would like to go try my hand at that one day. I'm about to call weaver and see what they can tell me.
 
Re: New Weaver Tactical w/ warne base wont boresite

I checked other reviews of this scope and it seems it has about 58MOA of adjustment in total.
In a perfect world this would only leave about 9MOA of "down" available with a 20MOA base.

It is certainly possible that there is more than 9MOA of error between the action and the base. Every action is a bit different.

How many mils/MOA are you short of zeroing?
It might be wise to shoot it to verify exactly how far off you are. This would help you make a decision on how to correct. If it's only off by a few MOA in total, switching to a 15MOA base might cure it.
 
Re: New Weaver Tactical w/ warne base wont boresite

I just boresighted it with a target 25 yards or so at the end of the store. I guess I'm going to go shoot it and if I can't get it to zero at 100 yrds then I'll look into another base.
 
Re: New Weaver Tactical w/ warne base wont boresite

If you are close to getting near the bottom of your verticle travel you might make sure that your windage is centered in the scope housing. If it's off to one side or the other then you'll lose some of the travel in the scope housing.

Just a thought but I ran into that on my XP with a +20 mount but I was dealing with a Burris 3-12 Ballistic Plex which does not have much verticle travel. You might have been way too close at 25 yards also, hopefully 100 will be a better distance for you.

Good Luck

Topstrap
 
Re: New Weaver Tactical w/ warne base wont boresite

I have that same Weaver scope and same Warne 20 MOA base. The only difference is I am using TPS rings. With my setup on my 700 I have 7 moa of adjustment before it bottoms out.
 
Re: New Weaver Tactical w/ warne base wont boresite

I'd wager he's messed up with the boresight attempt and real world shots downrange will realize a satisfactory zero,with satisfactory upwards ele erector travel after the fact.

Centering the windage,being a given.
 
Re: New Weaver Tactical w/ warne base wont boresit

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ASIPLEASE</div><div class="ubbcode-body">I'd wager he's messed up with the boresight attempt and real world shots downrange will realize a satisfactory zero,with satisfactory upwards ele erector travel after the fact.

Centering the windage,being a given. </div></div>

maybe so, but I have this same problem and I've shot the rifle many times so it's not my boresight.
 
Re: New Weaver Tactical w/ warne base wont boresit

vlcruz, what height rings are you using? I got mids but should of went ahead and got lows I think. I know I didn't mess up on the boresight. It still won't boresight with our leupold boresighter that goes on the end of the barrel.

Also, what are yall talking about centering the windage?
 
Re: New Weaver Tactical w/ warne base wont boresit

Chris,

To center the windage you dial the windage knob all the way to the left and then count how many MOA or mils there are "total" when dialed all the way to the right.Divide this in half and adjust the scope to that setting.Now the erector tube in the scope is centered.

Steve
 
Re: New Weaver Tactical w/ warne base wont boresit

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Chris Cape</div><div class="ubbcode-body">vlcruz, what height rings are you using? I got mids but should of went ahead and got lows I think.
</div></div>
I got TPS Low rings and it just clears the barrel with Butler Creek's on.