Scope ring lapping kit
- Thread starter StrelokRussia
- Start date
What I do is epoxy bed the rings. You need rings that are split on the horizontal or near the horizontal. Vertical splits don't work. The first step is to use a 1" bar or wood dowel to do a light lap of the bottom half of the rings. Or, I actually use an old scope. But, whatever you use, just wrap it with 240 or 320 wet dry sand paper. The basic purpose is to lap off the high spots and roughen the surface of the rings up. Next, I put epoxy or Devcon in the bottom half, with the scope coated with Kiwi neutral shoe polish, and bed the scope into the bottom half rings. Here is a procedure that describes it better than I can. I also use baseball pitcher rosin to powder up the rings so the scope does not slip in the rings.
I also bed the scope bases to the receiver. Quite often you will find the scope base curvature does not exactly match the receiver curvature.
Hope that helps some,
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Not sure where you are located but if you are in a major city you might look for a commercial dealer who sells "Thompson Shaft"
You can get it in 1 inch or 30 mm and they will cut to length. Way cheaper than buying a lapping kit. The lapping compound you can get from Canadian tire.
Its the same case hardened steel they use to make scope ring lapping rods.
You can get it in 1 inch or 30 mm and they will cut to length. Way cheaper than buying a lapping kit. The lapping compound you can get from Canadian tire.
Its the same case hardened steel they use to make scope ring lapping rods.
- Location
- calgary alberta
Why not simply purchase high quality rings and mount them on a high quality rail and not have to bother with lapping at all?
Our rings do NOT require lapping, in fact lapping them will ruin the tolerances and our rails do not require bedding.
Our rings do NOT require lapping, in fact lapping them will ruin the tolerances and our rails do not require bedding.
That would be way to easy!
In all seriousness, I personally would go this route.
Aprilia Man
CGN Ultra frequent flyer
- Location
- Canadian "WET" Coast (Raincouver)
This^^^
I have ATRS rings on 2 on my rigs. As per the post says .... no lapping required!
- Location
- Jameson, SK
ATRS rings: check. 
If you had read the link I posted you would realize that the purpose of the lapping to correct any significant misalignment between the front and rear rings, and make room for the epoxy. When you follow the procedure the rings will be aligned and fitted as perfectly as the scope you are mounting.
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
Burris Signature ZEE rings... Strong, lowest price, highest level of alignment and can shim your scope if needed.
This is simple.
Jerry
This is simple.
Jerry
- Location
- Jameson, SK
Ron, Ron, Ron....
My time is worth a lot more than the 8$ an hour you're paying yourself by saving 80$ not just stepping up and ordering ATRS (or any other good matched set) rings. I bet yours is too, you might just not value it as such. Your lapping/bedding/resin process takes how long??
A proper set of matched rings will not introduce a canting error. The way you mount the scope in those rings might, but lapping and bedding wouldn't help that. My scope level you that I just had made, will.
As for the interface between the receiver and rail, I'm stumped. How does one ever know that your rifle is truly level in this process?? The integrated rail on my Panda or Modern Hunter was made by an ultraprecise CNC mill, but was it calibrated?? Was the operator shaking due to lack of coffee?? I trust ATRS and Kelbly implicitly, but even so, balancing a spirit level on a 3/4" rail isn't exactly precise.
I know we're now really splitting hairs, but if we're gonna do it, let's do it right.
GGG
Sounds like you don't know what canting is. It is aggravated by the height the scope centerline is above the bore centerline. Every time I see a scope mounted like it is on a couple of step ladders I just think - "I hope they keep that sucker level.
