This is a rifle I throw quarters into the air and put holes through. It is a rifle I can 10/10 V ring at 100 yards, 75 yards, 50 yards with stock sights.
I only recently decided to upgrade it as health reasons keep me home and I have a range on my property so needn't tear it down anymore.
Put some high tunnel rings on it so you can still use the stock sights, pick a decent scope for your needs, level it, dope it, mark the picatinny rail perfectly after doing the above. You shouldn't need more than 1 shot to see if you're on or not at 50 yards. Don't over think this one.