I'll preface this by saying that I too am a noob, but before I got into "precision" .22lr shooting, I had no idea that ammo made such a huge difference. And it's not just a "you spend more you get more" type of thing, there's a great deal of experimentation that needs to happen. Especially with .22lr, some barrels/guns just don't like shooting particular ammo. This is by no means a comparison of the merits of different ammos. I have my 10/22 zeroed using Wolf/SK .22 ammo, which is surprisingly good. It's a low-velocity target ammo that my Shillen barrel loves. I'm still pretty new, but I was able to pull off some nice groups at the local range at 50 yards, this is just a target with 5 shot groups. We headed up to MG's family's cabin for the 4th of July weekend and I intended to do some plinking with my 10/22. Since I was just planning on plinking, we just brought up CCI Minimags for me to run through it. I found a stack of Olympic 50 feet targets in a pile of papers of MG's father's and took one to see how I fared. The x-ring is smaller in diameter than a .22 if that helps give you some idea of the size. I set up for 50 yards out and tried some Federal Auto Match that I found in the bottom of MG's shooting bag. I've tried it before with less than spectacular results, but was still pretty new to the game, and since it was between a match ammo and a plinking ammo, I figured I'd give it a shot (hahaha, funny pun). It performed less than spectacularly again. This target shows 10 shot groups. In the photo below, it's the lower right hand group. I'll admit that I wasn't paying as much attention or concentrating as hard as I probably should have been, but my attention level remained similar through the entire 5 targets. After the ghastly performance I got with the Federal, I figured I'd see how the minimags grouped, and was pretty pleasantly surprised. The remaining 4 targets were shot with 10 rounds of minimag. Despite them being cheap plinking ammo, they performed admirably in my gun/barrel combo. Obviously the Wolf/SK ammo is nicer, and I'll probably just break down and buy more of it for taking up to the cabin, but even Wal-Mart ammo has potential to group very nicely. I guess the point of this post is to get out there and experiment! You won't know your gun's optimal performance unless you try out a number of different ammos. While my gun doesn't shoot Federal Auto Match well, Federal Classic groups pretty nicely for me.