Uncoated steel especially stainless is a different matter.
Lapping aluminum scope rings.
The purpose for lapping the rings is to reduce any side loading flex on the scope.
So how is it done.
Slowly screw down the top scope rings to provide extra pressure on the scope lapping tool.
But had i put the scope in those rings without reaming and lapping i would have probably ruined the scope.
Specifically applied to scope rings the user would assemble the base and rings with a steel lapping bar.
So how is it done.
Brownells scope ring alignment lap is available in 1 inch and 30mm versions shown and includes lapping compound.
Place the scope lapping tool onto the rings and screw down the two top scope rings gently.
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That s most likely the finish on the scope rings and a bit of metal coming from the interior of the rings during the lapping process.
When lapping separate scope rings i set them as far apart on the mounting rail as possible in order to provide the maximum lapping rod movement covered later.
After 15 minutes of gentle action remove the two top scope rings and check.
Lapping increases the surface contact between the scope tube and ring and aligns the scope rings.
There s no sure way to know when you re done other than looking and need to clean the interior of the rings for inspection more than once is a possibility.
You can also improve the same area by having larger diameter scope bodies or thicker scope bodies.
Originally posted by mathman hate and phobic are terms used to put a negative spin on distaste or dislike expressed in a contrary opinion.
A lapping compound which is basically an abrasive liquid or paste is applied to the bar.
Screw the ring tops on but don t tighten the screws too snug.
Work the lap in zigzags through the rings and in figure 8s or ovals as the surfaces smooth up and the lap moves more easily.
Aluminum is anodized and lapping them makes them softer by removing the hard anodized outer layer.
Slowly move the scope lapping tool back and forward along with a gentle twisting action.
