Say kid.. - Why was your ‘set-up ruined’ by a supposition that the Carcano has a design that ejects the clip from the top?
I also can't think of any rifles aside from the Garand where the clip stays inside the magazine but ejects from the top after the last shot is fired. I certainly can't picture a design where the clip ejects from the top after the last round is chambered.
So no, what you're thinking I'm thinking is not what I'm thinking.