I only use the single shot tray when as I only shoot Field Target. I have used the mag in the past with monsters so I know what you mean. I've used a ball point pen to push them into place. I just tried it and these new designed pellets have a similar fit in the mag, but for me it's not so much the clear cover that catches them as much as the skirt size has a hard time fitting the in magazine holes. Some holes/pellets must me larger/smaller because some pellets will slide right in, where others will not clear the plastic cover. I've seen youtube videos of how to modify your magazine holes with a drimel tool to make them slide right in.