Scope Ring Lapping

[arizona98tj]

Hard to say how much the other ring halves were off. I do recall they all didn't look "even" as I lapped them. I believe that might negate the canting idea but perhaps not....no matter. As for EGW taking liberties with the base the rings are mounted on, you'll have to get them to weigh in on that topic. As for stacking tolerances with it being mounted on the receiver, perhaps so....might very well be. All that seems to reinforce the reason to lap the rings, IMO....helps take care of those inconsistencies you pointed out. Thank you.


If you bring your scope tube grinding kit to market, I'll be sure to review it.

 

[AK47TIM]

www.kokopelliproducts.com/acckit.htm

Everyone that mounts a scope should have one of theese kits! And check out the other items on his sight. He also explains why the Wheeler alignment bars don't work.

Sent from my DROID X2 using Tapatalk

 

[Cesiumsponge]

Anodizing is a very thin coating, and removing even a hair of that might look really ugly with a bare aluminum/black anodized surface in contrast, but it's not as bad as it appears. Even precision ground surfaces, which are easily flat to 0.00002", if you rub this precision ground steel surface against a granite surface plate, which is equally flat but much harder, you'll notice "ripples" where the high spots of the steel wear off as shiny spots and the low spots retain a ground surface finish. While it looks horrible to the human eye, it's still incredibly flat, to the point where you'd need specialized laboratory tooling to measure.

You know...it would probably be a more accurate if people bedded rings with devcon.
That way, you're fitting the rings to the scope body itself, not fitting rings to a lapping bar which might or might not be dimensionally identical to your scope tube. One other flaw with a lapping bar is...the ends of the surfaces being lapped tend to flare out a little. Anyone who has read about hand lapped barrels will come across mention that several inches of the barrel ends are commonly cut off when hand lapped before chambering and crowning because the lapping tends to remove more material at the very ends.

 

[abq87120]

I bought a lapping kit for my first scope. I think the next time, I'll mount the rings loosely on the gun then alternately tighten the rings on the mount with a lapping bar in place of the scope. This should give me a nice, straight channel in the rings to mount the scope.

 

[Lloyd Smale]

I lap them all anymore. Will it help accuracy? i dont know but it sure isnt going to hurt it. As to quality rings not needing lapping thats just bunk. Lots of other things come into play like how perfectly the gun was drilled and tapped. Ive lapped many sets of rings and have NEVER ran into a set that were perfect right from the git go.