Just found this. A bit pricey at $85

https://rapidloadertech.com/RL-SW1522.php

i find it a bit pricy as well

You should check out this thread:

Speed Loader for 15-22 Magazine

And look in the classified section about half way down the page:

*** 15-22 Specific CLASSIFIEDS ***

I have one and while is does work most of the time, I find it tends to wear out my trigger finger hitting the load button every time. If it could be redesigned with a crank instead of a button I would like it better.

if it was powered... by AA batteries... would be worth the $80.

If it worked like the one for my Ruger MKII or Buckmark I'd be on it....you dump a pile of shells in....shake them to get them sitting right and slide your mag in....works very well


.22 AUTO ULTIMATE CLIP LOADER | Brownells

The reloader is the Lightnin Grip Loader.

I bought one last week. Arrived in two days.

The cost is $27.50 and comes with 2 Ruger 10/22 adapters. For $6 more I bought the M&P 15-22 adapter. Tried it with my M&P 25 round stock mag and it worked flawless--loaded 25 rounds in about 10-15 seconds. However, it did not work with my Plinker 15-22 mags.

The 10/22 adapter worked perfect on my butler creek 25-round mags. They tell you that it will not work on Ruger factory mags (10-round or the BX-25). They said they are working on an adapter for them.

Extra adapters are $6@. I bought one for my Sig/GSG 1911-22 and it worked fine.

Total shipping is $4.

Here is the link for their page:
Mcfadden Machine Company Incorporated lightnin' clip loader

Here is a link with a demo:
McFadden Lightnin' Grip 10/22 Mag Loader by McFadden Ultimate Clip Loader

I got one of the prototypes of those but did not consider it ready for prime time. The Skunkworks one does work but I can load just as fast by hand. Recently got the McFadden Lightning Grip Loader (already had their Ultimate Clip Loader pistol mag loader for over 4 years and it is the best for Ruger/Browning mags) and it works way faster than I can do by hand, around 10 seconds for a 25 rd mag. Also got the adapter for CMMG/BDM mags for my dedicated .22 AR upper. Also works well.