Don't dry fire a rimfire. Period.
I have this gun and have mixed feelings about it. You should probably upgrade to a stainless guide rod ASAP
to avoid a major break down. It'll shoot CCI mini-mags, and does quite well with most of the premium 50-100rd packed 22lr rounds from CCI and Winchester...including the really fast stuff. Mine has some minor issues with bulk 22lr, but nothing too bad. It'll handle most it.
Shoot the snot out of it, upgrade that guide rod, and make your next purchase a 'big boy' 1911 in 45acp.