Wadcutters don't feed in autoloading pistol actions, except those specially engineered or modified for them. You can hand feed a wadcutter into the chamber for your first shot, but you need to have round nose or JHP in the magazine. If you read Jim Cirillo's Guns, Bullets and Gunfights you will find an example of doing exactly that. However, bullet technology has advanced since the 1960s when he did this. He did experiment with a sawtoothed wadcutter-shaped bullet with a plastic nose cap (to allow feeding from the magazine) that fell away when the bullet exited the muzzle, but realistically this does little that a conventional JHP bullet won't.