McFadden also has a new Lightning Grip Loader - McFadden Machine Lightnin' Grip Loader
- which I finally got a chance to try out. It is not quite as smooth as I would like - and is a bit bulky - so perhaps better for pre-loading a bunch of magazines at home than as a range accessory.
The Grip Loader has a number of adapters meaning it can work with a variety of magazines.
If you google 22r loader there are some interesting options out there - not necessarily all for the same types of magazines - such as this one - http://www.slickloader.com
I haven't tried by BabyLula single stack loader on any of my 22s - but I do use it on the .380.
Here's another one that is kinda cool - a DIY prototype -