So I got a new Ruger Mini 30, used, on saturday. I took it to the range today to try it out. It came with a scope that was pretty zeroed in and I was able to get some nice groupings at 100 yds. However it has some problems. I was constantly having feeding problems. It felt like the magazine wasn't seating all the way and I'd have to push it up to ensure a round got chambered. If it's just a bad mag that's no big deal, you can always get a new one. Well I did get a new one on my checkout from the range. I should have thought to check it in the store but when I got home this new one wouldn't even lock in all the way. That is it would kind of click in but it didn't seem to be going all the way up and I was able to subsequently remove it by pushing it forward, sans mag release button. Perhaps more troubling was the FTF I got. On more than one occasion (when a round actually did get chambered) I would pull the trigger and all I would hear is the hammer drop. I cautiously kept my gun down range for about 30 seconds each time fearing a slow fire of faulty ammo. However each time after ejecting there was no indentation from the firing pin. I'm not sure if this is somewhat related to the feeding problems I saw or something else. Has anyone heard of anything like this w/ the ruger mini 30 or any other rifle? Anything I can do or did I just make a bunk purchase?