I assume you may be using some “Ruger Only” hot handloads. In that case, l would use a scope to increase the mass of the gun to tame recoil and help you see in dim conditions.
I am also a huge fan of UltraDot and that’s on my Norinco TT Olympia .22
What I learned over the years is how often I shot sticks and tree branches between me and my deer. I’ve bagged half a dozen trophy sticks, sometimes with a tight group! With a scope, it’s easier to not see the tree branches.
Having used both, I now use iron sights.