Is it a varmint barrel? Have you tried any other ammo? How windy was it?
My brother had a ss 93 in 22 mag (sporter) that shot slightly better than that but not much. I think he was shooting the green tipped ballistic tips if I remember (not sure on the brand)... I don't think ~2 moa at 100 would be horrible if you were originally planning to use iron sights anyway. Try a couple different types of ammo before you give up on it. He now has a 93v in 17hmr since mine shot so good. They are both .75moa or less at 100 "when it is calm out" even a little wind will really mess with a little bullet.

I don't think it would be worth it to pay to rebarrel one when you can get them so cheap. I also think your only option would be a 17??