I have four 25 round Steel Lips magazines that I bought for my 10/22 ($12 each - good deal?). I went to the range today and I'm having problems with them, after the first one or two rounds the next round won't feed right and the bolt, after ejecting the empty brass, doesn't cycle closed. If I try to clear it by pulling the charging handle I'll often end up with a double feed. I tried another brand of ammo, but had the same problem. I'm currently* not having a problem with my 10 round Ruger magazines. I thought maybe it was due to the little bit of slop the magazines have when seated and am considering seeing if putting a little scotch tape on the magazines to make them slightly larger might help. I've also thought about changing out the spring on the charging handle to see if that might make a difference (I have a stronger and a weaker spring in my parts box - came with the oversized charging handle I bought and installed). Any thoughts and help would be appreciated. *The time before this when I took it to the range I was having all kinds of feeding and ejecting problems (stove piping, etc.) no matter what magazine I was using. However I replaced the extractor and a sticky extractor spring since then, and also put in 2 new receiver pins that I bought on eBay (there is a distinct possibility that I only had one pin in when I was at the range last time - see my receiver pin thread) I hoped everything would work..... but... sigh... put your hope in one hand and do 'you know what' in the other and see which fills up first. On the plus side, I'm probably going to get to make some modifications, and I usually enjoy doing that (unless I accidentally destroy something, or shoot a part across the room, lose it, and then have to order a new one - both of which I've done). So wheee! (conditionally).