My 9.3x64 has a 2x7 Leupold in QD mounts, depending on the terrain it can be up or down from its normal set of 4x, thick scrub - scope off!

My 404J in CZ550 has the same scope also in QD mounts, but I also have a red dot that comes in a QD mount that fits off the front dovetail - its brilliant to use, doesn't foul when you reload in competitions either.
https://americanhuntingrifles.com/product/leupold-delta-point-qd-mount-for-cz-550-brno-zkk/

I did make a concession for my 450/400, it to wears a red dot in QD mounts, again it makes sighting easy for aging eyes & doesn't foul you up when you are reloading.

As to my Martini 577/450 & my Ruger No1 in 500NE 3" (also runs as my BP Express rifle), both have only open sights - yes they are hard to use now, especially the Martini where you have to use a very fine bead at short range!