Quote Originally Posted by Baldie View Post

Do not lap your ring mounts. Great idea, but ... No, thinking about it, useless idea. This procedure will allow you to line up the scope tube through the rings if they are misaligned, but a one piece adustable from Sportsmatch won't need this.
I know you are having a laugh, Baldie . . but try this:

Put some engineer's blue on your scope. Rotate it in the scope mounts whether Sportsmatch or whoever's, see how much contact there is. In my experience, not a lot. Same with the caps. The finished surface of the mounts is not the result of precision line-boring, for a start there is the paint/anodising.

Lapping gives you a certain reassurance of a good mechanical bond between scope and mounts, possibly slightly improving reliability and definitely minimising the risk of damage to the 'scope tube.

Lapping may be a waste of time, but it's not a bad idea!