Was wondering if anyone knew much about the Ruger ML? I never see anyone talk much about them. I found one for sale for $300.

They are a good gun but have been obsolete for quite some time. I do not know if there are any parts available, it is really frustrating to have a good gun and have some part fail and not be able to replace it.
If it were me I would look at a long standing company that has a good reputation for service, there are a number of fine guns in that price range.

+ 1 on what Lee said. But all I ever heard of them, they were great rifles.