I picked up my CP33 today, serial number M069x. Bud's Gun Shop provides an immediate gratification 30 minute free range card with every in-store firearm purchase, so I went out to the car, read the manual, familiarized myself with the CP33, and loaded both mags but did not insert them into the pistol. I then went back into the store and shot my new CP33 for the first time. It was everything I'd dreamed it would be, and it was a lot like what KTOGgers imagined when we brainstormed how to redesign a PMR-30 to make a 30 round 22LR pistol, when we were waiting for the PMR-30 to be released many years ago. I was surprised that the magazines fit as tightly as they do. They're nowhere close to being drop free magazines. In fact, it takes a fair amount of force to push them up into the grip and pull them back out. Mine are a friction fit. Maybe the grip is screwed together extra tight and I could back the grip screws off and blue Loctite them to keep them from backing the rest of the way out, or maybe the magazines need to be that tight so they don't rock and they feed reliably. When I think of a competition pistol, I think of fast mag changes. Then again, if you can run an entire stage using a single magazine.... I'll try some RemOil on the mating surfaces to see if some residual Teflon makes the mags easier to insert and extract. If that's not to my satisfaction, I'll probably use some 600 grit paper to make the mating surfaces less slick so they don't tend to stick to each other. Shooting a few thousand rounds would probably accomplish the same thing. As others have commented, the magazines are much easier to load than the PMR-30 magazines. Kudos to Kel-Tec for that. Ktwm, was that you? The manual shows a rim lock, which is easy to see in the transparent magazine, but it must have taken some effort to reproduce that problem. The first magazine wasn't too easy for me to load but they quickly became a lot easier. By the third magazine, I wasn't even trying to be careful and it's still difficult to imagine rim locking a round. It's a huge improvement over the PMR-30 mag loading. As easy as the CP33 mags are to load, I still think a mag loader would be nice because it's a lot of rounds to load. I shot over 200 rounds of various ammunition and was very pleased with the performance and reliability. At first, I thought the CP33 was kicking the brass straight back at my head, but then I realized that it was bouncing the ejected brass off the side wall of the shooting lane and back into my head. I did some double taps and triple taps and some 33 round mag dumps. They don't mind goofy stuff like that at this range as long as the rounds are going into the target and not the ceiling. There were some goofy long mag dumps but the CP33 ran like a Swiss sewing machine. Here's the CP33 along with some of the ammo I tested today. I'd consider the 40gr CCI Mini Mags to be the standard ammo for the CP33 but I also had no problems running 40gr Federal AutoMatch and 40gr Aguila subsonic ammo, so it's not that fussy. The orange plastic box was some old unlabeled 22LR ammo that I had and I don't even know what it was. It had a CCI headcase stamp, so I guess that was before they switched to clear plastic boxes so it's fairly old. It was a bit crufty with oxidation. This was the second magazine I ran through the CP33 so it wasn't broken in and I followed the slide forward instead of decisively slingshotting it, and the first round didn't want to feed. It was fine after that, and the rest of the box of ammo ran fine after I had shot some other ammo. I'd call that initial failure to feed operator error on a new and unfamiliar firearm. I ran enough AutoMatch through it that I was expecting one of those bulk packed rounds to have no primer, but it all ran great. The only ammo that I tried that the CP33 didn't like was the 60gr Aguila SSS subsonic. I was surprised it worked as well as it did. I loaded ten rounds, expecting it not to work. The first round didn't want to chamber, but the cartridge is mostly a long hunk of waxy lead. I dumped the round and quickly slingshotted the slide and the second round chambered. Those nine rounds cycled properly. The target was fairly chewed up by this time, but I didn't see any keyholes so I assume the faster 1 in 14 rifling stabilizes those long and heavy-for-caliber 60gr bullets. I tried loading another magazine but it didn't want to load more than ten rounds or so. The sticky lead was causing too much friction and I could tell the 20 rounds weren't going to feed, and they didn't. I had failures to feed, mostly because the bullet was nose diving rather than going up into the chamber. Those rounds generally bent and couldn't be used after the malfunction. Perhaps if the magazines were broken in and maybe had some dry lube inside them, I could get 20 rounds of 60gr Aguila SSS ammo to function reliably. I also had one failure to eject because the tiny low aspect ratio brass can easily turn sideways when trying to eject. If the brass was longer, it would have been a stovepipe, but it wasn't long enough to stick out of the ejection port. Again, I wasn't expecting the 60gr subsonics to feed or function, so I was pleasantly surprised that ten would mostly feed, and other than the single failure to eject the tiny piece of brass, whatever fed would function. I'm not holding the weird 60gr ammo against the CP33. That's totally not its mission, particularly when the 40gr Aguila subsonics were 100% reliable in my testing. What's up with the California Prop 65 warning on the plastic pistol case? Hey California! The pistol that your government will never allow you to purchase uses lead which might not be good for you.