I started out at reloading with the RCBS funnel that was labeled 22 cal. and up. When it came to loading 22 Hornet, it became obvious that that funnel would let powder trickle around the outside of the case.
At this point, I tried the MTM funnel with interchangeable nozzles. It worked out ok with extruded powders but with smaller ball powders a portion of the charge would migrate and hang up in the little crevasses where the interchangeable spouts met the funnel body.
I then went with the RCBS 17 cal. funnel, and have been using it ever since for 22 cartridges, though extruded powders must be poured into it slowly to avoid the powder bridging and clogging up.
Those Saturn funnels look pretty good, but I haven't tried them.
