sig classic

I've owned several Sig Sauer handguns and now I'm starting to build them from 80% kits and I know I'm going to need serious help with my project until I learn how to do it right so any help anyone can provide would be deeply appreciated

I searched but did not find any linked topics, so can anyone answer my question of "What is the minimum velocity in terms of FPS will a P229 22 Classic functions effectively with?" Normally, I'd have been able to just buy some different brands with different FPS/mass/velocity values and fire...