RobD, you are quite correct. That is why they are indeed a very effective "quick fix". But an adjustable iris attachd to proper shooting spectacles is much better. And, of course, much more expensive.
BTW, your comments with regard to Boer Mauserology would be welcome here:
https://www.milsurps.com/showthread.php?t=29270
- I may not have got it quite right
---------- Post added at 07:45 AM ---------- Previous post was at 07:38 AM ----------
RJW NZ: What exactly is whale oil beef? Does it come from sea cows?
![]()