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Good Scope Mounting Tools

 
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  #1  
Old 10-17-2009, 07:19 PM
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Good Scope Mounting Tools

I'm going to invest in some more tools for this Hobie. The Topic today is scope tools. I have the weaver level level and other stuff that really just gets a person by.The level level is a POS. I use my small machinist level now, its much more accurate. But its time to invest in some good alignment and lapping tools. The two I have narrowed down to are the Sinclair set and the Kopentelli sets. I'm leaning more to the Kopentelli sets. Thoughts any one.

Regards : Mike
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  #2  
Old 10-17-2009, 09:22 PM
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Re: Good Scope Mounting Tools

I agree the level-level-level bubbles are not much good. It is hard to find surfaces that they will be verifiably level on



turrets could be off from the factory, action rails could be a little off and the bubbles may not be level.

I use this tool, the EXD ENGINEERING : EXD ENGINEERING VERTICAL RETICLE INSTRUMENT - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools

which you put on the scope barrel and rifle barrel



to align them while you have your gun in a vise, when the bubble is level the rifle is UNCANTED. Then rotate your scope to align the reticles with a distant vertical or horizontal object and lock it down. I use a 4' level on a fence out the door about 30 yds out.

As far as alignment of the bases and rings, I have a 1" and 30mm Wheeler Engineering Scope Ring Alignment and Lapping Combo Kit 1" and 30mm - MidwayUSA

which are very useful when you mount dovetail rings or the rings with the windage adjustment screws. For the more fixed type like Weavers or Talleys they will only tell you if you have a problem, then you could lap the rings or order offset rings for misaligned base screw holes.

I have found the EXD indispensable for scope mounting and usually put an anti-cant device on the scope at the time I am aligning the scope and barrel and leveling the reticle. If I ever move the scope it is easy to just level the scope to the anti-cant device. It is also helpfull for long range shooting.
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  #3  
Old 10-18-2009, 03:13 AM
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Re: Good Scope Mounting Tools

That EXD anti-cant tool looks pretty nifty. Thanks for sharing that information.
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  #4  
Old 10-18-2009, 06:55 AM
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Re: Good Scope Mounting Tools

The EXD just went on my list! That tool when you think how it is used will take all the guess work out of knowing weather you vertical alignment is on or off. What a simple idea!
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  #5  
Old 09-07-2013, 06:43 AM
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Re: Good Scope Mounting Tools

Don't bother with that tool. It doesn't true the action level and vertical crosshairs should only be plumbed to gravity as the direct opposing force of your bullet travel. Any can't or misalignment ie if your vertical crosshair is aligned on a canted action will produce issues at long range. Big issues. Many guys think they have a bad rifle or whatever. 90% of the time it is imperceptible cant error in scope mounting.
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  #6  
Old 09-07-2013, 09:24 AM
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Re: Good Scope Mounting Tools

Quote:
Originally Posted by gunner69 View Post
Don't bother with that tool. It doesn't true the action level and vertical crosshairs should only be plumbed to gravity as the direct opposing force of your bullet travel. Any can't or misalignment ie if your vertical crosshair is aligned on a canted action will produce issues at long range. Big issues. Many guys think they have a bad rifle or whatever. 90% of the time it is imperceptible cant error in scope mounting.
While this is an OLD thread, your post doesn't explain much. The EXD aligns the centerline of the bore and the centerline of the scope in a vertical plane verified by the bubble which is gravity oriented. It does not align the ACTION as that may or may not be 100% aligned with the bore.

The previous post also details to align the vertical or horizontal reticles with a gravity oriented object, in my case a 4' level on a distant fence but I also mentioned a distant vertical or horizontal object, could be the edge of a building, suspended stringline with heavy object at bottom, etc etc. IF you only align the reticle with the objects without taking the cant out of the rifle AND installing an anti-cant device (also mentioned), then you may well be susceptible to inducing cant when in the field or at the bench.

Perhaps a more detailed and step by step explanation from you would be helpful
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  #7  
Old 09-07-2013, 12:41 PM
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Re: Good Scope Mounting Tools

Quote:
Originally Posted by gunner69 View Post
Don't bother with that tool. It doesn't true the action level and vertical crosshairs should only be plumbed to gravity as the direct opposing force of your bullet travel. Any cant or misalignment ie if your vertical crosshair is aligned on a canted action will produce issues at long range. Big issues. Many guys think they have a bad rifle or whatever. 90% of the time it is imperceptible cant error in scope mounting.
I've purchased the EXD tool and used as described, it will ensure the bore, the scope, as well as the reticle in the scope are all aligned in the same plane, and a plane plumb with the earth's gravitational field.

You've overlooked the step where the vertical crosshair is plumbed to a 4' level, while the EXD tool is employed to confirm that the bore and scope are also held in vertical alignment with gravity using the bubble level provided on the EXD tool. I use a plumb bob rather than a 4' level for purposes of rotating the vertical crosshair plumb with gravitational force, prior to tightening the scope rings.
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