For those that are mechanically inclined, here's one way to take advantage of the $8 Weaver #82 scope rail.
1. First step is to cut the flat off at the rear of the rail, I used a hack saw, then cleaned it up on a belt sander.
2. Then place the rail in a drill vise with another rail on top of it as a template for the two new holes that need to be drilled, use the rear most hole to index off of by sticking a drill bit thru both rails, then clamp it tight in the vise, drill the middle and front holes.
3. Then counter sink the holes to the same depth as the original hole.
4. Last step is cut additional cross slots if you need them, I used a carbide toothed blade in my table saw, it makes quick work once the depth of the cut it adjusted, I used the existing slot to get the blade just right, it's also the same width as the original cross slots!
5. Touch up the bright metal with a black marker, all done!!
Tim