I have a Williams/Beeman aperture sight on my HW30S and it will easily shoot into 1" at 30 yards. I also have opens on my BSA Meteor. Apertures are easier to use and more accurate than ordinary open sights, and are erm, easler for the Senior shooter to use.

I mostly buy Weihrauch rifles and most HWs can still be had with open sights. PCPs are another issue of course, but you can sort them out with open sights for a reasonable sum. A HW77 rearsight will fit on most scope ramps, and a AA200 foresight unit can be persuaded to fit most barrels.

There are open sight comps at most clubs, and of course the formal 6 yard, bell-target and 10 meter fraternity never stopped using open sights.

Open sights are more commonly enjoyed in the USA, which is not what you would expect, but there it is.

The PCP and the telescopic sight go together hand in hand, and in these islands that is the usual thing.