Anybody have any experience with any 22 caliber revolvers that are convertible from 22lr to 22mag by changing the cylinder? I am aware of the Ruger Single Six but wanted to look at some others before decidingif I wanted to purchase. I heard Heritage made one also,but I haven't seen one of theirs andI know nothing about their quality. Any comments on the Heritage quality or recommendations of other manufacturersthat I am not aware of?

thanks,