I don't have either rifle with me to measure, but you should be able to see that the carrier sits in a line with the chamber mouth; if yours is a little too high, you can trim it down a mite to allow the front of the cartridge to drop a bit, and get a little further into the chamber so the rim clears the slots. Lay a pencil or other smaller straight edge on the carrier that will allow you to see if the carrier lines up with the mouth, with enough clearance to get the case past the mouth, yet not so high that the bullet hits the top of the chamber before the rim can clear the slots in the guide.
FWIW, the later mdl 94s all have the same part number for guides for all calibers, very early ones used a different set of guides for the .32-40 & .38-55. But those are for a pre-64 type receiver, which are threaded to have the screw heads inside the receiver... so those guides would fit in your gun. If you could find any, I certainly haven't for my pre-64 receiver.
