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The subject was about lapping, assumed crazy that was a given. If I left that out, my bad.

I owe ya a Bud Light.

And BTW, good call on the benchrest action &rings. Very likely to be ...there from the get go.

Later sleep

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About as much as a good spit!


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Originally Posted by Mauser06
I know a very accomplished long range benchrest shooter that'll weigh and sort primers but doesn't lap rings.



If it makes ya feel good, have at it. If you buy a decent set of rings, it's probably not going to help anything.
Bet he uses a good action too. Not factory crap.


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Everyone goes ape [bleep] over bedding and screw torque but why. Don’t want any bind in the action
Then y not lap the rings
Some rifles are horrible esp Ruger and rem
Seen many rem 700 they grind off too much of the rear and ever requires a shim
Custom actions in good rings are nice and lap right in
Old sako rifles are almost as true as the customs

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Lapping, shimming bases, bedding, buying the expensive stuff -- all of those work. The general idea is to get rid of as many stressors and variables as you can, or WANT, or NEED to eliminate. A happy scope helps a happy firearm make its owner happy.


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I lap all my rings. Everyone beds there rifle right
Now bolt a 1 in or 30 mm pipe on it and impart stress to the action and scope not goo for either
Now good quality rings help but still lap them
Worst I have seen is Ruger some rem rear will even need shimmed old sakos are pretty spot on
Custom actions are good to go but I still lap them
We are going for zero stress.

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Harold Vaughn wrote a lot about this in "Rifle Accuracy Facts". Very informative read.


The data and opinions contained in these posts are the results of experiences with my equipment. NO CONCLUSIONS SHOULD BE DRAWN FROM ANY DATA PRESENTED, DO NOT, UNDER ANY CIRCUMSTANCES, ATTEMPT TO REPLICATE THESE RESULTSj
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Originally Posted by CharlieSisk
Harold Vaughn wrote a lot about this in "Rifle Accuracy Facts". Very informative read.

https://archive.org/details/RifleAccuracyFactsFullV1.0FirstFullScan/mode/2up


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Burris signature zee rings and don’t worry about it .
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Lap the turn in stuff, and talley lightweights. The new BACO M70s have the best actions in my opinion with the Sheridan Mark Vs being a close second. Scope should have zero stress.

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If you are looking at rings as if they are a clamp you are not seeing what is really going on. Nightforce gives a good explanation of lapping and correct ring installation.


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I have a set and so do few of my friends that run one piece DNZ game reaper.
Anyone ever try to lap DNZ and see how they do?


All of them do something better than the 30-06, but none of them do everything as well.
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Originally Posted by gunzo
With the exception of the Burris swivel inserts, the best rings/bases made cannot compensate for a receiver that's out of spec from the mounts.

The same with alignment bars. They can help eliminate ring twist when mounting but can't correct a thing if one ring is canted away from the other. That's where lapping comes in.

When I switched to more expensive scopes I started lapping. I was amazed at how much ring, even with expensive rings, don't touch the scope.


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I’ve lapped DNZ game reapers. They aren’t too bad but I lap them anyway. Doesn’t take long to do

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Originally Posted by 2500HD
I’ve lapped DNZ game reapers. They aren’t too bad but I lap them anyway. Doesn’t take long to do
Ok thank you.


All of them do something better than the 30-06, but none of them do everything as well.
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Originally Posted by 2500HD
I’ve lapped DNZ game reapers. They aren’t too bad but I lap them anyway. Doesn’t take long to do

Do you do this without checking how alignment bars look?

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If they are cnc machined lapping is not necessary


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Originally Posted by MuskegMan
Originally Posted by 2500HD
I’ve lapped DNZ game reapers. They aren’t too bad but I lap them anyway. Doesn’t take long to do

Do you do this without checking how alignment bars look?


I was going to say, how much lapping helps depends on haw far out of alignment the rings were before they were lapped.


If they're aligned well, lapping doesn't help much.



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Originally Posted by Ridge_Runner
If they are cnc machined lapping is not necessary


Just because they are CNC machined does not make them perfect. What about the rail and receiver, if they are not perfect what does that do to make the ring height perfect?
Lapping only washes out any mismatch of the receiver, base and rings before it gets to the scope.


I may not be smart but I can lift heavy objects

I have a shotgun so I have no need for a 30-06.....
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This ^^^

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