I think MGM uses a .358" diameter for their .350 Legend, not .355. https://matchgrademachine.com/chambers-list/

.22 Hornet would be fun. Especially with a relatively tight chamber. I had one in a TC pistol and 2 Ruger 77/22s .. sloppy / oversized, so brass life was nil. I had case head separations with factory ammo. Could not get a 2nd reload out of a case. The case heads were at the bottom end of SAAMI, chamber was at or above .. "no bueno."

Anyone who thinks there's two sides to everything hasn't met a M�bius strip.

Here be dragons ...