One of brands of .22s that I have used for a stainless barrel is the Thundebolts, seems to leave the barrel cleaner.
I had a stainless Ruger Redhawk that was fed a diet of lead cast bullets, took me forever to get the lead out of the rifling.
I like the Ruger 10/22, my son has the stainless with the colorful laminated stock, has a silver 3x9x40 scope on top.
Marlins autos seem to like Federal best. Come to an Appleseed and see how your gear stands up. See my tagline. Also, I meant the hyper-velocity stuff is bad for semi’s.
I’m 100% DONE with Remington .22 ammo.
At least one in 10 of the cheap stuff won’t even detonate the rim.
I switched to Federal .22 bulk and haven’t had a problem.
But, CCI MiniMag is my “go to” ammo for SHTF and target shooting.