What's the deal with these things? Many are rated with only 1 "star" on Midway's website by purchasers, because of poor fit and performance. The 20 round magazines, on the other hand, run flawlessly, and are rated very high. Why would Ruger put a bum OEM magazine on the market? Does anyone have and shoot 30 round Ruger factory magazines in their Mini 14? What have been your results? I was going to buy a few, but now I'm not after reading that so many have had such grief with them. I'll stick to 20 rounders. Cheaper besides. Who wants to spend more and get a headache from it? Bill T.