My factory single shot tray is also pretty much junk compared to the CARM swing out SS tray. The Carm doesn't scoot out when you load it, and it is MUCH easier to get a pellet in there. When I use the factory SS tray, I have to hold it in place with the other hand while I drop a pellet in, or it moves. Then, because of lube on the pellet or oil from your fingers, most times the pellet will briefly cling to my finger as I pull it away, and flip the pellet around.With the CARM, push the pellet into the hole and close. Way more positive.
Wonder if .177 lead balls would work also