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Warning - Bad Burris Rings Causing Bad Accuracy - Printable Version

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Warning - Bad Burris Rings Causing Bad Accuracy - AZBackcountry - 10-13-2020

Years ago a good friend of mine who is a Gunsmith installed these Burris rings on my rifle with a Weaver rail to save me money. He believed that a rail was better than lapping for alingment. They are Burris 1" Signature Zee Weaver-Style Rings. I had never mounted a scope and he was teaching me how to do it his way. We spent a lot of time getting the scope plumb.
I have seen Gunsmiths in magazines and now on Youtube talking about lapping rings. I always worried that taking the finish off the insides of the rings would cause corrosion or a loose scope. I have bought quality rings for years and have never an found issue with the machining. I have used rails or aligned the bases to keep from lapping rings for alignment.
I always had 2 MOA fliers with this rifle so I fugired that 200 yards was max range with it. I finally have the time and the money to get this problem fixed. I bought a picatinny rail and new quality rings.
When I was removing the Leupold Gold Ring scope I noticed the scope tube has some finish scraped off on opposite sides front and rear that matched the ring tops shape. I looked at the tops and fould the finish scraped on them too. I put the tops back on where I removed them and finished removing the rings and found the really poor machinig that Burris had done. See picture for the obvious quality problem of the tops creating a ledge on one side as compaired to the bottoms. The tops radius is wrong when check on three scope tubes.
[ATTACH=CONFIG]16934[/ATTACH]
I installed the new rail and rings and the rifle is MOA with no fliers. Obvious now, the rings caused the fliers. I'm planning on always buying high quality rings like I have been doing for years and check the quality. For those that lap their rings, are these rings even able or worth being lapped to fix a manufatures defect?
I have three Burris AR-P.E.P.R. mounts that are great and didn't need lapping. Any manufacture can make a mistake that's why there is QA/QC.
I hope my posting will help someone else with the same or similar problem with accuracy.


Warning - Bad Burris Rings Causing Bad Accuracy - Mesa1978 - 10-14-2020

i've used 12 sets of Signature Zee rings both 1" and 30mm on Weaver and Pic. rails, never an issue over a 20+ year period, both USA and Chinese made. I've always kept the ring halves as a set, no idea if that makes a difference. It's unfortunate you had issues with them, as I have found them to be cost effective and secure on semi-auto and bolt guns. As far as accuracy goes, the SZ rings have never been a limiting factor, no zero shifts, for example, with a variety of scopes, SWFA, Nikon and US Optics, to name a few.

Good luck with your new combination.


Warning - Bad Burris Rings Causing Bad Accuracy - Wheelhorse - 10-14-2020

AZBackcountry Wrote:Years ago a good friend of mine who is a Gunsmith installed these Burris rings on my rifle with a Weaver rail to save me money. He believed that a rail was better than lapping for alingment. They are Burris 1" Signature Zee Weaver-Style Rings. I had never mounted a scope and he was teaching me how to do it his way. We spent a lot of time getting the scope plumb.
I have seen Gunsmiths in magazines and now on Youtube talking about lapping rings. I always worried that taking the finish off the insides of the rings would cause corrosion or a loose scope. I have bought quality rings for years and have never an found issue with the machining. I have used rails or aligned the bases to keep from lapping rings for alignment.
I always had 2 MOA fliers with this rifle so I fugired that 200 yards was max range with it. I finally have the time and the money to get this problem fixed. I bought a picatinny rail and new quality rings.
When I was removing the Leupold Gold Ring scope I noticed the scope tube has some finish scraped off on opposite sides front and rear that matched the ring tops shape. I looked at the tops and fould the finish scraped on them too. I put the tops back on where I removed them and finished removing the rings and found the really poor machinig that Burris had done. See picture for the obvious quality problem of the tops creating a ledge on one side as compaired to the bottoms. The tops radius is wrong when check on three scope tubes.
[ATTACH=CONFIG]16934[/ATTACH]
I installed the new rail and rings and the rifle is MOA with no fliers. Obvious now, the rings caused the fliers. I'm planning on always buying high quality rings like I have been doing for years and check the quality. For those that lap their rings, are these rings even able or worth being lapped to fix a manufatures defect?
I have three Burris AR-P.E.P.R. mounts that are great and didn't need lapping. Any manufacture can make a mistake that's why there is QA/QC.
I hope my posting will help someone else with the same or similar problem with accuracy.
I would be on the phone to Burris because something is definitely mismatched. Seems to me this should have been caught before the scope was placed in them.

BTW, the Signature Zee uses the plastic inserts and from what I can see in the photo, these are the standard Zee rings which do not use the insert.


Warning - Bad Burris Rings Causing Bad Accuracy - LR1955 - 10-14-2020

AZBackcountry Wrote:Years ago a good friend of mine who is a Gunsmith installed these Burris rings on my rifle with a Weaver rail to save me money. He believed that a rail was better than lapping for alingment. They are Burris 1" Signature Zee Weaver-Style Rings. I had never mounted a scope and he was teaching me how to do it his way. We spent a lot of time getting the scope plumb.
I have seen Gunsmiths in magazines and now on Youtube talking about lapping rings. I always worried that taking the finish off the insides of the rings would cause corrosion or a loose scope. I have bought quality rings for years and have never an found issue with the machining. I have used rails or aligned the bases to keep from lapping rings for alignment.
I always had 2 MOA fliers with this rifle so I fugired that 200 yards was max range with it. I finally have the time and the money to get this problem fixed. I bought a picatinny rail and new quality rings.
When I was removing the Leupold Gold Ring scope I noticed the scope tube has some finish scraped off on opposite sides front and rear that matched the ring tops shape. I looked at the tops and fould the finish scraped on them too. I put the tops back on where I removed them and finished removing the rings and found the really poor machinig that Burris had done. See picture for the obvious quality problem of the tops creating a ledge on one side as compaired to the bottoms. The tops radius is wrong when check on three scope tubes.
[ATTACH=CONFIG]16934[/ATTACH]
I installed the new rail and rings and the rifle is MOA with no fliers. Obvious now, the rings caused the fliers. I'm planning on always buying high quality rings like I have been doing for years and check the quality. For those that lap their rings, are these rings even able or worth being lapped to fix a manufatures defect?
I have three Burris AR-P.E.P.R. mounts that are great and didn't need lapping. Any manufacture can make a mistake that's why there is QA/QC.
I hope my posting will help someone else with the same or similar problem with accuracy.

AZB:

What do you believe happened with the rings to cause the poor shots?

If the optic was secured in the rings, the rings secured to the base, and base secured to the rifle -- why would it be any of them that caused the poor shots?

LR55


Warning - Bad Burris Rings Causing Bad Accuracy - ricsmall - 10-15-2020

LR1955 Wrote:AZB:

What do you believe happened with the rings to cause the poor shots?

If the optic was secured in the rings, the rings secured to the base, and base secured to the rifle -- why would it be any of them that caused the poor shots?

LR55

I would guess uneven bearing surface of ring to scope, causing stress on the tube. Only thing I can think of.


Warning - Bad Burris Rings Causing Bad Accuracy - LR1955 - 10-16-2020

ricsmall Wrote:I would guess uneven bearing surface of ring to scope, causing stress on the tube. Only thing I can think of.

Rick:

Yes, stress on the tube will happen but how does stress on the tube cause two minute errors? In most cases, there is no lens located where the rings bear on the scope body so the notion that this pressure is causing a lens to misalign is probably wrong.

Not saying nothing is wrong with the optic. Just wondering if this sort of thing is caused by rings not bearing perfectly on the optic body or something else.
LR55