Just wondering if these are a good sub for the Sig brand ones.
https://www.amazon.com/Speed-B...atible/dp/B0B2V2FF75

I want a spare and haven't been able to locate Sig one on Sig website.

Check with SIGforum member Greg Cote.

He answers emails quickly.

Have never seen a P322 magazine, but wonder if an Maglula 22lr loader would do the trick?

https://www.maglula.com/produc...=product_cat%5B31%5D

We have a double stack 22 loader that worked well for the kids on both double and single stack 22 mags. Of course, most 22 mag springs aren’t that tight so the loader is less critical than on say an M&P9.