When you buy new hicap .22 mags, load them to full capacity by hand and let them sit for a few days to set the spring. This will prevent alot of issues with the mags. As buffdog said, make sure your mags are clean and also there is a bit of technique required with the BC loader. Dont just crank the knob, there is a certain resistance you will feel when rounds are loading properly, and it will bind a little when rounds dont want to load smoothly. As soon as you feel that extra resistance, stop and back off a little bit then try again. If you just force it you will be rewarded with a nice little dent that can cause FTF. When mags get dirty enough however it gets to a point that the BC loader cannot push them in without denting them. Either clean the mags or load them by hand.