My .32 H&R Mdl. 97 has a 7 1/2" barrel. I use an ISGW target rear sight and one of my own undercut patridge front sights. I'm quite satisfied with that set-up.
There are certainly differences of opinion on the topic, but for my own use, I find express sights to be too crude for small game accuracy.
In my own state of N.C., only .22 rimfires (and shotguns) are legal for squirrels and rabbits. However, I have used the FA .32 H&R on groundhogs, with the 85 gr. Hornady XTP driven by H 4227 to 1200 fps. That load is not what I would use on rabbits and squirrels due to the expansion and meat damage. Cast bullets would be a better option.