Lee sells a "universal" neck expander that works very well. I've used it for 30, 303, 35 and 45 cal but not tried it in the 22's. I really like the ability to use it for different calibers and you can also vary the amout of expanding you require. The thing I don't like about the M type setup is it's only good for just the 1 caliber and may not expand the case enough or may expand it to much, depening on the case neck thickness. The Lee style can do it all. Good luck with your choice.
